Atif Pedia

Past Papers of  Biology 10th Class Gujranwala Board 2019 Group-II
GUJRANWALA BOARD 2019 10TH CLASS PAST PAPER
BIOLOGY Time Allowed: 15 Minutes
PAPER-II (Objective Type) GROUP-II Max. Marks: 12

Note: Four possible answers A, B, C and D to each question are given. The choice which you think is correct, fill that circle in front of that question with Marker or Pen ink in the answer-book. Cutting or filling two or more circles will result in zero mark in that question.
1. Destruction of walls of the alveoli is called
(A) Asthma
(B) Emphysema
(C) Pneumonia
(D) Bronchitis

2. The plants which live completely or partially submerged in fresh water are called
(A) Hydrophytes
(B) Halophytes
(C) Xerophytes
(D) Bryophytes

3. A coordinated action has_ components.
(A)2
(B) 3
(C) 4
(d) 5

4. The neurons having one dendrite and one axon are called
(A) Motor
(B) Inter
(C) Sensory
(D) Mixed

5. Which point of attachment on bone is pulled when a muscle contracts?
(A) Origin
(B) Flexion
(C) Extension
(D) Insertion

6. After fertilization in plants the seed develops from
(A) Ovule
(B) Ovary
(C) Sepals
(D) Petals

7. In flower stigma, style and ovary is collectively called
(A) Sepal
(B) Petal
(C) Stamen
(D) Carpel

8. The blood group of a person having genotype (ii) is
(A) A
(B) B
(C) AB
(D) O

9. The locations of genes on chromosomes are called
(A) Loc’
(B) Alleles
(C) Genotype
(D) Phenotype

10. Smog forms a yellowish brown haze and hamper visibility during.
(A) Summer
(B) Spring
(C) Winter
(D) Autumn

11. is an anti-viral protein.
(A) Urokinase
(B) Thymosin
(C) Insuline
(D) Interferon

12. Micro organisms found on non-living are destroyed by
(A) Antiseptics
(B) Disinfectants
(C) Antibiotics
(D) Analgesics

Past Papers of English 10th Class BISE Gujranwala 2019
ENGLISH Time Allowed: 2:10 Hour
(SUBJECTIVE TYPE) GROUP-II Max. Marks: 56

Note: Attempt any FIFTEEN (15) questions from Section-I and attempt any TWO (2) questions from Section-II.

SECTION-I

Past Papers of  Biology 10th Class Gujranwala Board 2019
GUJRANWALA BOARD 2019 10TH CLASS PAST PAPER
BIOLOGY Time Allowed: 15 Minutes
PAPER-II (Objective Type) GROUP-I Max. Marks: 12

Note: Four possible answers A, B, C and D to each question are given. The choice which you think is correct, fill that circle in front of that question with Marker or Pen ink in the answer-book. Cutting or filling two or more circles will result in zero mark in that question.

1. Hydra and corals reproduce by means of
(a) Binary fission
(B) Budding
(C) Fragmentation
(D) Spore formation

2. The cardiotonic used to stimulate the heart is called
(a) Aspirin
(B) Digitalis
(C) Paracetamol
(D) Analgesics

3. The waste material that are removed by coniferous
(a) Resins
(B) Gums
(C) Paracetamol
(D) Analgesics

4. A network of food chains which are interconnected at various trophic levels is called
(a) Biomass
(B) Pyramid of numbers
(c) Pyramid of biomass
(D) Food web

5. The term “true breeding” Means
(a) Heterozygous
(B) Homozygous
(C) Heterologous
(D) Homologous

6. product is used in the production of plastics.
(a) Glycerol
(B) Ethanol
(C) Acrylic acid
(D) Formic acid

7. The number of hydrogen bond between adenine
(a) 1
(B) 2
(C) 3
(D) 4

8. The ells of cartilage are called
(a) Chondrocytes
(B) Osteocytes
(C) Lacuna
(D) Matrix

9. The special gland present in the walls of auditory canal_ which reduce.
(a) Auditory fluid
(B) wax
(C) Blood
(D) Nerve impulse

10. In non smokers who are exposed to second hand smoke
(a) 15.20%
(B) 20.30%
(C) 25.30%
(D) 30.45%

11. The material containing sperms and fluid is called
(a) Hormones
(B) Follicles
(C) Semen
(D) Scrotum

12. Pons is present on the top of
(a) Cerebrum
(B) Thalamus
(C) Cerebellum
(D) Medulla

Past Papers of Biology 10th Class Gujranwala Board 2019
BIOLOGY (New Scheme) Time Allowed: 1:45 Hour
PAPER-II (SUBJECTIVE TYPE) GROUP -1 Max. Marks: 48

Past Papers of  Biology 10th Class Lahore Board 2019
LAHORE BOARD 2019 10TH CLASS PAST PAPER
BIOLOGY Time Allowed: 15 Minutes
PAPER-II (Objective Type) GROUP-I Max. Marks: 12

Note: Four possible answers A, B, C and D to each question are given. The choice which you think is correct, fill that circle in front of that question with Marker or Pen ink in the answer-book. Cutting or filling two or more circles will result in zero mark in that question.
1. True breeding means:
(A) Homozygous
(B) Heterozygous
(C) Karyotype
(D) Phenotype

2. Which are decomposers:
(A) Plants
(B) Animals
(C) Algae
(D) Fungi and bacteria

3. What do some bones produce:
(A) Mucous
(B) Hormones
(C) Blood cells
(D) Oxygen

4. For all ecosystems the basic source of energy is:
(A) Plants
(B) Water
(C) Sun
(D) Fire

5. Which one of the following diseases is cured by vaccines:
(A) AIDS
(B) Smallpox
(C) Cancer
(D) Malaria

6. Where does the gaseous exchange occur in human:
(A) Pharynx
(B) Trachea
(C) Bronchi
(D) Alveoli

7. Asexual reproduction in yeast take place by:
(A) Spore formation
(B) Multiple fission
(C) Binary fission
(D) Budding

8. Which organ is responsible for filtering the blood:
(A) Intestine
(B) Kidney
(C) Brain
(D) Stomach

9. The number of pairs of homologous chromosomes in human cell are:
(A) 26
(B) 25
(C) 24
(D) 23

10. Root develops from:
(A) Testa
(B) Plumule
(C) Micro Pyle
(D) Radicle

11. Number of pair of cranial nerves in human are:
(A) 10
(B) 14
(C) 12
(D) 16

12. Anti-Virus protein is:
(A) Insulin
(B) Interferon’s
(C) Thymosin
(D) Urokinase

Past Papers of Biology 10th Class Lahore Board 2019
BIOLOGY (New Scheme) Time Allowed: 1:45 hour
PAPER - II (Essay Type) GROUP -1 Max. Marks: 48

SECTION-I

2.  Write short answers to any FIVE questions:  (5x2 = 10)
i.  What are the effects of smoking on teeth?
ii.  How sound is produced in voice box?
iii.  What is the function of hairs and mucous in the nose?
iv.  What are the causes of stone formation in kidney?
v.  Define homeostasis. Give an example.
vi.  What are meninges? Write down their functions.
vii.  Write down the function of rods and cones present in the retina of eye.
viii.  How epilepsy can be treated?

3.  Write short answers to any FIVE questions:  (5x2 = 10)
i.  What two minerals are found in bones?
ii.  Differentiate between tendons and ligaments.
iii.  Define reproduction also write its importance for species.
iv.  What is micropyle? What is its use for seed?
v.  What is meant by alternation of generations?
vi.  Differentiate between omozygous genotype and heterozygous genotype.
vii.  What is meant by co-dominance?
viii.  What is the theory of special creation?

4.  Write short answers to any FIVE questions:  (5x2 = 10)
i.  What is meant by decomposers? Give an example.
ii.  Write down four disadvantages of excessive DE nitrification.
iii.  What is green house effect? Write the name of two important green house gases.
iv.  Write down four uses of formic acid.
v.  Define the term biotechnology. Also write its one benefit.
vi.  Differentiate between pharmaceutical and addictive.
vii.  What do you mean by narcotics? Write down its one use.
viii.  What are sulpha drugs? Write down its one use.

SECTION-II

5.  (a) Explain osmoregulation and thermoregulation.
(b)  Write down the name and explain different components of .coordinated action.

6.  (a) Define arthritis and describe its types.
(b) define germination of seed. Describe various conditions necessary for seed germination.

7.  (a) Give a detailed account of urbanization.
(b) Explain basic steps in genetic engineering.

Past Papers of  Biology 10th Class Lahore Board 2019
LAHORE BOARD 2019 10TH CLASS PAST PAPER
BIOLOGY Time Allowed: 15 Minutes
PAPER-II (Objective Type) GROUP-II Max. Marks: 12

Note: Four possible answers A, B, C and D to each question are given. The choice which you think is correct, fill that circle in front of that question with Marker or Pen ink in the answer-book. Cutting or filling two or more circles will result in zero mark in that question.

Past Papers of  Biology 10th Class Gujranwala Board 2018 Group I
GUJRANWALA BOARD 2018 10TH CLASS PAST PAPER
BIOLOGY Time Allowed: 15 Minutes
PAPER-II (Objective Type) GROUP-I Max. Marks: 12

Note: Four possible answers A, B, C and D to each question are given. The choice which you think is correct, fill that circle in front of that question with Marker or Pen ink in the answer-book. Cutting or filling two or more circles will result in zero mark in that question.
1. The study of drug composition, properties and medical application is called
(a) pharmacology
(B) pharmaceutical
(C) pharmacy
(D) drug science

2. All ecosystems of the world together form
(a) population
(B) community
(C) habitat
(D) biosphere

3. Transmission of characteristics from parents to offspring is
(a) genetics
(B) inheritance
(C) trait
(D) chromosome

4. Connection between embryo and uterus wall is called
(a) cervix
(B) follicle
(C) placenta
(D) vagina

5. A hormone testosterone is secreted by
(a) pancreas
(B) gonads
(C) thyroid gland
(D) adrenal gland

6. The elimination of metabolic waste from body is called
(a) excretion
(B) respiration '
(C) osmoregulation
(D) thermoregulation

7. Gaseous exchange occurs in human beings in
(a) pharynx
(B) trachea
(C) bronchi
(D) alveoli

8. Oval window is found in
(a) middle ear
(B) -external ear
(C) internal ear
(D) eye

9. Our skull has bones.
(a) 14
(B) 24
(C) 22
(D) 32

10. Rhizopus reproduces a sexually by
(a) binary fission
(B) budding
(C) spore formation
(D) egg formation

11. Position of genes on chromosome is called
(a) genome
(B) nucleosome
(C) trait
(D) locus

12. Organisms with modified genetic set up are called
(a) hybrid
(B) transgenic
(C) transformed
(D) rearranged

Past Papers of Biology 10th Class Gujranwala Board 2018
BIOLOGY (New Scheme) Time Allowed: 1:45 Hour
PAPER-II (SUBJECTIVE TYPE) GROUP-II Max. Marks: 48

Note: Attempt any FIFTEEN (15) questions from Section-I and attempt any TWO (2) questions from Section-II.

SECTION-I

2. Write short answers to any FIVE questions: (5 x2 = 10)
i. Write two functions of nasal cavity.
ii. Differentiate between acute and chronic bronchitis.
iii. What is meant by homeostasis?
iv. Write two osmotic adjustments in hydrophytes.
v. What is dialysis? Write the names of its types.
vi. Write the names of types of co-ordination in organisms.
vii. Write the functions of rods and cones cells.
viii. Write the names of two hormones of posterior lobe of pituitary gland.

3. Write short answers to any FIVE questions: (5 x2 = 10)
i. Define joint, also write the names of its types.
ii. What are osteocytes?
iii. HIV stands for what?
iv. What is the function of cowper’s gland?
v. Define multiple fission.
vi. What is meant by “theory of special creation”?
vii. Define incomplete dominance.
viii. Differentiate between phenotype and genotype.

4. Write short answers to any FIVE questions: (5x2 = 10)
i. Write down two bad effects of acid rain.
ii. What is meant by commensalism? Give two examples.
iii. Write down any two objectives of genetic engineering.
iv. Write the names and uses of any two industrial products produced through fermentation.
v. What is meant by recombinant DNA?
vi. What is the contribution of Joseph Lister in Biology?
vii. Explain drugs from minerals with the help of examples.
viii. Define narcotics. Also give examples.

SECTION-II

5. (a) Explain osmoregulatory function of kidney.
(b) What is meant by “nerve cell or neutron”? Explain its types.

6. (a) What is meant by “arthritis”? Write down its types.
(b) What is meant by “tissue culture”? How new plants are grown by using this method?

7. (a) How carbon cycle takes place in nature? Explain.
(b) How many methods are used for fermentation?

Past Papers of  Biology 10th Class Gujranwala Board 2018 Group I
GUJRANWALA BOARD 2018 10TH CLASS PAST PAPER
BIOLOGY Time Allowed: 15 Minutes
PAPER-II (Objective Type) GROUP-I Max. Marks: 12

Note: Four possible answers A, B, C and D to each question are given. The choice which you think is correct, fill that circle in front of that question with Marker or Pen ink in the answer-book. Cutting or filling two or more circles will result in zero mark in that question.

1. In DNA nucleotide guanine forms pair with
(A) cytosine
(B) thymine
(C) uracil
(D) adenine

2. The fourth whorl of flower is
(A) calyx
(B) androecium
(C) gynoecium
(D) corolla

3. The industrial product from aspergillus is
(A) formic acid
(B) ethanol
(C) glycerol
(D) acrylic acid

4. The alternate forms of a gene are called
(A) loci
(B) alleles
(C) phenotypes
(D) genotypes

5. The example of ectoparasite is
(A) mosquito
(B) tape worm
(C) ascaris
(D) plasmodium

6. Destroy micro organisms found on non-living objects.
(A) disinfectants
(B) antibiotics
(C) antiseptics
(D) sedatives

7. The example of suckers is
(A) potato
(B) garlic
(C) mint
(D) ginger

8. Decreases the level of calcium ions in blood.
(A) calcitonin
(B) parathormone
(C) vasopressin
(D) oxytocin

9. These plants have very deep roots.
(A) hydrophytes
(B) xerophytes
(C) halophytes
(D) mesophytes

10. The bronchi present in air passageway are
(A) 1
(b)2
(c) many
(D) None of these

11. In neuron, nucleus is found in
(A) myelin sheath
(B) axons
(C) cell body
(D) node of ranvier

12. It is found as covering the ends of long bones.
(A) hyaline cartilage
(B) elastic cartilage
(C) fibrous cartilage
(D) inelastic cartilage

Past Papers of Biology 10th Class Gujranwala Board 2018
BIOLOGY (New Scheme) Time Allowed: 1:45 Hour
PAPER-II (SUBJECTIVE TYPE) GROUP -1 Max. Marks: 48

Past Papers of  Biology 10th Class Lahore Board 2018
LAHORE BOARD 2018 10TH CLASS PAST PAPER
BIOLOGY Time Allowed: 15 Minutes
PAPER-II (Objective Type) GROUP-II Max. Marks: 12

Note: Four possible answers A, B, C and D to each question are given. The choice which you think is correct, fill that circle in front of that question with Marker or Pen ink in the answer-book. Cutting or filling two or more circles will result in zero mark in that question.

1. Length of spinal cord is:
(A) 40 cm
(B) 30 cm
(C) 20 cm
(D) 10 cm

2. Example of rhizome stem is:
(A) Potato
(B) Ginger
(C) Onion
(D) G

3. Human skeleton contains number of bones:
(A) 406
(B) 306
(C) 206
(D) 106

4. Part of embryo makes root:
(A) Cotyledon
(B) Epicotyl
(C) Radicle
(D) Plumule

5. It is the unit of nervous system:
(A) Ganglions
(B) Nerve
(C) Neuron
(D) Receptor

6. The complete map of human genome was published in:
(A) 1902
(B) 2000
(C) 2002
(D) 2005

7. Which structure plays an important role for pushing the air out of lungs:
(A) Nasal cavity
(B) Bronchus
(C) Diaphragm
(D) Bronchiole

8. Diazepam is:
(A) Sedative
(B) Hallucinogens
(C) Narcotics
(D) Vaccines

9. The maintenance of temperature in internal human body is called:
(A) Thermoregulation
(B) Osmoregulation
(C) Respiration
(D) Guttation

10. E. coli bacterium was made in:
(A) 1980
(B) 1975
(C) 1977
(D) 1970

11. Theory of natural selection was presented by:
(A) Aristotle
(B) Lamarck
(C) Darwin
(D) Malthas

12. Symbiosis in which both partners get benefit is example of:
(A) parasitism
(B) Mutualism
(C) Predation
(D) Competition

Past Papers of Biology 10th Class Lahore Board 2018
BIOLOGY (New Scheme) Time Allowed: 2:45 hour
PAPER - II (Essay Type) GROUP -II Max. Marks: 63

(PART-I)

2. Write short answers to any FIVE (5) questions: (10)
(i) Differentiate between glottis and epiglottis. '
(ii) How does the gaseous exchange occur in leave and young stems?
(iii) Define hydrophytes and give an example.
(iv) Write down the method of lithotripsy.
(v) What is meant by succulent organs? Give an example.
(vi) Write down the function of occipital lobe.
(vii) Differentiate between sympathetic system and parasympathetic system.
(viii) What is meant by brain stem?

3. Write short answers to any FIVE (5) questions: 10)
(i) Differentiate flexion and extension. 1 '
(ii) What is meant by osteoporosis?
(iii) How binaiy fission take place in invertebrates. Give an example.
(iv) Define endospores, give an example. ’
(v) Write the name of two important parts of angiosperm seed.
(vi) Differentiate between breeds and cultivars.
(vii) Define the Mendel’s law of independent assortment.
(viii) What is meant by natural selection, also give an example?

4. Write short answers to any FIVE (5) questions:
(i) What is global warming?
(ii) Define alcoholic fermentation.
(iii) Give uses of glycerol.
(iv) Give two objectives of genetic engineering.
(v) How gene of interest is isolated?
(vi) Explain drugs from animals.
(vii) Differentiate between antibiotics and disinfectants.
(viii) What are narcotics?

(SECTION-II)

Note: Attempt any TWO questions:
5. (a) Describe the osmoregulatory role of kidney. 5
(b) Explain the structure of neuron.

6. (a) What is bone? Describe its structure. 5
(b) Describe the advantages and disadvantages of vegetative propagation of plants 4

7. (a) What is acid rain? Describe its bad effects. 5
(b) Discuss role of biotechnology in the field of good and agriculture.

Past Papers of  Biology 10th Class Lahore Board 2018
LAHORE BOARD 2018 10TH CLASS PAST PAPER
BIOLOGY Time Allowed: 15 Minutes
PAPER-II (Objective Type) GROUP-I Max. Marks: 12

Note: Four possible answers A, B, C and D to each question are given. The choice which you think is correct, fill that circle in front of that question with Marker or Pen ink in the answer-book. Cutting or filling two or more circles will result in zero mark in that question.

1. The disease in which destruction the wall of alveoli is:
(A) Asthma
(B) Pneumonia
(C) Emphysema
(D) Bronchitis

2. Encyclopedia “Al-Tasrif’ is written by:
(A) Al-Farabi
(B) Abu-ul-Qasim
(C) Ali Ibn-e- Isa
(D) Al-Haitham

3. The smallest bone in human body is:
(A) Stapes
(B) Incus
(C) Milieus
(D) Vertebra

4. The length of spinal cord is:
(A) 20cm
(B) 40cm
(C) 60cm
(D) 70cm

5. Number of bones in appendicular skeleton is:
(A) 126
(B) 116
(C) 136
(D) 146

6. Female reproductive part of flower is:
(A) Gynoecium
(B) Androecium
(C) Sepals
(D) Petals

7. Example of vegetative propagation by leaves is:
(A) Mint
(B) Potato
(C) Garlic
(D) Petals

8. Charles Darwin proposed the mechanism of organic leaves is:
(A) 1838
(B) 1882
(C) 1930
(D) 1900

9. Making a normal pigmentation is example of:
(A) Phenotype
(B) Genotype
(C) Traits
(D) Chromosome

10. Non-renewable resource of:
(A) Fossil fuels
(B) Wind
(C) Water
(D) Soil

11. Diazepam is a drug of:
(A) Vaccines
(B) Sedatives
(C) Antibiotics
(D) Analgesics

12. The enzyme which use to dissolve blood clots is:
(A) Amylase
(B) Pepsin
(C) Tripsin
(D) Urokinase

Past Papers of Biology 10th Class Lahore Board 2018
BIOLOGY (New Scheme) Time Allowed: 2:45 hour
PAPER - II (Essay Type) GROUP -1 Max. Marks: 48

(PART-I)

Past Papers of  Biology 10th Class Gujranwala Board 2016
GUJRANWALA BOARD 2016 10TH CLASS PAST PAPER
BIOLOGY Time Allowed: 15 Minutes
PAPER-II (Objective Type) GROUP-II Max. Marks: 12

Past Papers of  Biology 10th Class Gujaranwala Board 2017
GUJRANWALA BOARD 2017 10TH CLASS PAST PAPER
BIOLOGY Time Allowed: 15 Minutes
PAPER-II (Objective Type) GROUP-I Max. Marks: 12

Note: Four possible answers A, B, C and D to each question are given. The choice which you think is correct, fill that circle in front of that question with Marker or Pen ink in the answer-book. Cutting or filling two or more circles will result in zero mark in that question.

1. An organism expressed physical trait such as seed shape or pod colour is called
(a) Karyotype
(B) Genotype
(C) Phenotype
(D) Chemical Type

2. The root is formed from the part of the embryo.
(a) Hilum
(B) Radicle
(C) Plumule
(D) Epicotyl

3. This product is used in the production of soap.
(a) glycerol
(B) formic acid
(C) Sulphuric acid
(D) Acrylic acid

4. These are the unit of inheritance.
(a) Genes
(B) Alleles
(C) Phenotype
(D) Genotype

5. Study of the relationship between organism and their environment is called
(a) Histology
(B) Ecology
(C) Genetics
(D) Anatomy

6. This group includes mescaline and psilocin.
(a) Sedatives
(B) Narcotics
(C) Hallucinogens
(D) Vaccines

7. The plant in which vegetative propagation occurs by leaves is
(a) Garlic
(B) Ginger
(C) Potato
(D) Bryophyllum

8. This hormone is secreted in case of emergency situation.
(a) Pancreas (b).Glucagon
(C) Adrenalin
(D) Calcitonin

9. The organ which is responsible for filtering the blood
(a) Stomach
(B) Brain
(C) Pharynx
(D) Kidney

10. A thick muscular structure below the lungs is called
(a) Kidney
(B) Liver
(C) Diaphragm
(D) Ureter

11. The deficiency of this vitamin causes poor night vision.
(a) Vitamin A
(B) Vitamin B
(C) Vitamin C
(D) Vitamin K

12. The purpose of ribcage is
(a) Protection of stomach
(B) Protection of heart and lungs
(c) Protection of spinal cord
(D) Protection of pharynx

Past Papers of  Biology 10th Class Lahore Board 2017
LAHORE BOARD 2017 10TH CLASS PAST PAPER
BIOLOGY Time Allowed: 15 Minutes
PAPER-II (Objective Type) GROUP-II Max. Marks: 12

(SECTION I)

Note: Four possible answers A, B, C and D to each question are given. The choice which you think is correct, fill that circle in front of that question with Marker or Pen ink in the answer-book. Cutting or filling two or more circles will result in zero mark in that question.
1 Iodopsin is present in:
(A) Rods
(B) Cones
(C) Choroid
(D) Cornea

2 Saeed absorbs water through:
(A) Testa
(B) Hilum
(C) Micropyle
(D) Cornea .

3 The end of skeletal muscle attached with immoveable bone is:
(A) Origin
(B) Insertion
(C) Belly
(D) Static end

4 The outermost whorl of flower is called:
(A) Corolla
(B) Petals
(C) Calyx
(D) Androecium

5 The genotype of “O” blood group is :
(A) 1A1A
(B) 1B 1B
(C) II
(D) IBI

6 The respiratory centre is present in:
(A) Lungs
(B) Brain
(C) Nose
(D) Muscles

7 The respiratory centre is present in:
(A) Lungs
(B) Brain
(C) Nose
(D) Muscles

8 Diazepam is:
(A) Vaccine
(B) Narcotics
(C) Hallucinogens
(D) Sedative

9 Plays role in maintaining body temperature:
(A) Lungs
(B) Skin
(C) Kidneys
(D) Ear

10 Single cell protein can be obtained from:
(A) Insect
(B) Cow
(C) Algae
(D) Bird

11 Phenotypes ratio in incomplete dominance is:
(A) 1 : 3 : 3
(B) 3:1
(C) 1 : 3
(D) 1 : 2:1

12 R-2 means:
(A) Reduce
(B) Recycle
(C) Renewable
(D) Reuse
2. Write short answers to any FIVE (5) questions: (10)
(i) What are Lenticels? Describe their function.
(ii) Differentiate between acute and chronic bronchitis.
(iii) Define osmoregulation.
(iv) What is meant by guttation?
(v) Describe any two causes of kidney failure.
(vi) What is blind spot?
(vii) Owl is unable to see during daytime. Give reason.
(viii) How ears maintain the balance of body?

3. Write short answers to any FIVE (5) questions: (10)
(i) Differentiate between compact bone and spongy bone.
(ii) What is rheumatoid arthritis?
(iii) Define oogenesis.
(iv) Give two disadvantages of vegetative propagation.
(v) Differentiate between epigeal germination and hypogeal germination.
(vi) State the law of segregation.
(vii) What is inheritance?
(viii) What are nucleosomes?

4. Write short answers to any FIVE (5) questions: (10)
(i) Define food chain and food web.
(ii) What is meant by nitrogen fixation?
(iii) What is genetic engineering?
(iv) Write any two characteristics of transgenic animals.
(v) How the microorganisms produce cell protein?
(vi) Define pharmacology.
(vii) What are hallucinogens?
(viii) Write about some drugs obtained from plants.

(SECTION-II)

Note: Attempt any TWO questions:
5. (a) Name the organs which work for homeostasis in humans. Describe in detail the
work of two organs only. 5
(b) Write a note on forebrain. 4
6. (a) What is skeletal system? Write the role of skeletal system. 5
(b) Write a note on the development and structure of seed. 4
7. (a) Write a note on carbon cycle. 5
(b) Describe the advantages of using fermenters. 4

Past Papers of  Biology 10th Class Lahore Board 2017
LAHORE BOARD 2017 10TH CLASS PAST PAPER
BIOLOGY Time Allowed: 15 Minutes
PAPER-II (Objective Type) GROUP-I Max. Marks: 12

Note: Four possible answers A, B, C and D to each question are given. The choice which you think is correct, fill that circle in front of that question with Marker or Pen ink in the answer-book. Cutting or filling two or more circles will result in zero mark in that question.
1. Pair of spinal nerves are:
(A) 31
(B) 13
(C) 21
(D) 12

2. A sexual reproduction in yeast take place by:
(A) Spore formation
(B) Multiple fission
(C) Binary fission
(D) Budding

3. Number of bones in both feet are
(A) 108
(B) 56
(C) 12
(D) 22

4. The cell results by combining sperm and ovum.
(A) Chromosome S
(B) Genes
(C) Zygote
(D) Nucleus

5. The myelin sheath is secreted by:
(A) Schwann cells
(B) Dendrites
(C) Axon
(D) Nodes of Ranvier

6. Example of co-dominance is:
(A) Blood group B
(B) Blood group A
(C) Blood group AB
(D) Blood group O

7. Gaseous exchange occur in human.
(A) Alveoli
(B) Bronchi
(C) Trachea
(D) Pharynx

8. Penicillin is discovered by:
(A) Edward Jenner
(B) Joseph Lister
(C) Bu-Ali Sina
(D) Alexander Flemming

9. Example of hydrophyte plants is:
(A) Grass
(B) Sea grass
(C) Cactus
(D) Water lily

10. The total amount of loving matter in an ecosystem at any time is called:
(A) Food web
(B) Food chain
(C) Energy
(D) Bidmass

11. E-coil bacterium was made in:
(A) 1980A.D
(B) 1975 A.D
(C) 1977A.D
(D) 1970A.D

12. The alternate forms of gene are called:
(A) Replication
(B) Alleles
(C) Phenotype
(D) Genotype

Past Papers of Biology 10th Class Lahore Board 2017
BIOLOGY (New Scheme) Time Allowed: 2:45 hour
PAPER - II (Essay Type) GROUP -1 Max. Marks: 63 (PART-1)

(PART-I)

2. Write short answers to any Five (6) questions: (10)
(i) Differentiate between acute and chronic bronchitis.
(ii) What is nicotine?
(iii) Define hydrophytes with an example.
(iv) Name two major parts of a nephron.
(v) What is lithotripsy?
(vi) Define co-ordinators with examples.
(vii) Differentiate between sensory and motor neurons.
(viii) What is nerve impulse?

3. Write short answers to any FIVE (5) questions: (10)
(i) Differentiate between hyaline and fibrous cartilage.
(ii) How lower jaw is different in mammals from other lower vertebrates, also give its advantage?
(iii) How duding occurs in corals?
(iv) How plants reproduce by suckers? Give example.
(v) What is cloning?
(vi) Describe two rnajor processes of organic evolution.
(vii) What is “theory of special creation”?
(viii) Name nitrogenous bases found in DNA molecule.

4. Write short answers to any FIVE (5) questions; (10)
(i) Differentiate between intra-specific inter-action and inter specific interaction.
(ii) What is meant by predation? Give an example.
(iii) What is recombinant DNA?
(iv) Define pharmacology.
(v) How biotechnology has helped us in improving the environment?
(yi) What are tetracyclines? Give an example.
(vii) What are sedatives? Give an example.
(viii) What are synthetic drugs?

(PART-II)

Note: Attempt any THREE questions:
5. (a) What in nephron? Describe its structure and also draw labelled diagram. 5
(b) Write the name and functions of lobes of cerebrum. 4

6. (a) Define joint. Describe its different types. 5
(b) Describe four different ways of natural vegetative propagation. 4

7. (a) What is global warming? Describe its causes. 5
(b) Describe basic steps in genetic engineering. 4

Past Papers of  Biology 10th Class Gujranwala Board 2016
GUJRANWALA BOARD 2016 10TH CLASS PAST PAPER
BIOLOGY Time Allowed: 15 Minutes
PAPER-II (Objective Type) GROUP-II Max. Marks: 12

Note: Four possible answers A, B, C and D to each question are given. The choice which you think is correct, fill that circle in front of that question with Marker or Pen ink in the answer-book. Cutting or filling two or more circles will result in zero mark in that question.

1. Four Possible answers are given for the following questions. Tick (✓) the correct answer: 12

Past Papers of  Biology 10th Class Gujranwala Board 2016
GUJRANWALA BOARD 2016 10TH CLASS PAST PAPER
BIOLOGY Time Allowed: 15 Minutes
PAPER-II (Objective Type) GROUP-I Max. Marks: 12

Note: Four possible answers A, B, C and D to each question are given. The choice which you think is correct, fill that circle in front of that question with Marker or Pen ink in the answer-book. Cutting or filling two or more circles will result in zero mark in that question.
1. Four Possible answers are given for the following questions. Tick (S) the correct answer: 12
1- The chest wall is made up of   pairs of ribs.
(a) 8
(B) 12
(C) 16
(d) 20

2- The typical volume of urine produced by an adult in liters per day is
(A) 2.4
(B) 1.4
(C) 4.2
(D) 4.1

3- Which one is the largest area of brain?
(A) hind brain
(B) mid brain
(C) fore brain
(D) super brain

4- The middle layer of eye is called.
(A) retina
(B) choroid
(C) pupil
(D) sclera

5- How to many bones make our skull?
(A) 14
(B) 24
(C)22
(D)26

6- A corn develops into new garlic plants, this is the process of
(A) vegetative propagation
(B) rgeneration
(C) fragmentation
(D) binary fission

7- There is a scar genetically different kinds of gametes an individual with genotype AA bb can produce?
(A) 1
(B) 2
(C) 4
(D) 8

8- The location of genes on chromosomes are known as
(A) alleles
(B) genotype
(C) loci
(D) nucleosomes

9- The location of genes on chromosomes are known as
(A) alleles
(B)
(C)
(D)

10- The hormone which many prove effective against brain and lung cancer which is produced by genetically modified organism.
(A) insulin
(B) Thomosin
(C) ligase
(D) urokinase

11- Which one is produced from minerals?
(A) producers
(B) consumers
(C) decomposer
(D) water

12- Which drugs is produced from minerals?
(A) tincture of iodine
(B) musk
(C) opium
(D) streptomycin

Past Papers of Biology 10th Class Gujranwala Board 2016
BIOLOGY (New Scheme) Time Allowed: 2:45 hour
PAPER - II (Essay Type) GROUP -1 Max. Marks: 63

SECTION-I

2. Write short answers to any SIX questions: (6x2 = 12)
(i) Why blood becomes viscous due to smoking?
(ii) Differentiate between inspiration and expiration.
(hi) Write down the symptoms of lungs cancer.
(iv) What are tendons? What is their function?
(v) What are ball and socket joints? Give examples.
(vi) What do you know about Gout?
(vii) What is the threat for Maldives due to oceans?
(viii) Define mutualism and give example.
(ix) Differentiate between interaspecific and intraspecific competition.

3. Write short answers to any FIVE questions: (5x2 = 10)
(i) What is meant by homeostasis?
(ii) Write two main causes of kidney failure.
(iii) What are halophytes?
(iv) What is meant by double fertilization?
(v) Differentiate between hypogeal and hypogeal germination.
(vi) What is meant by genetic engineering?
(vii) Write names of any two industrial produced through the process of fermentation.
(viii) Define Single-Cell Protein.

4. Write short answers to any FIVE questions: (5x2 = 10)
(i) Write down the function of midbrain.
(ii) Write down the functions of insulin and glucagons hormones.
(iii) What are traits? Give an example.
(iv) What is meant by transcription?
(v) Define mendel’s law of segregation.
(vi) What is analgesics drug? Give an example.
(vii) What are vaccines?

SECTION-II

5. (A) How Kc helps in predicting extent of a reaction? 4
(B) Write down three chemical properties of bases. 3

6. (A) Give four general characteristics of organic compounds. 4
(B) Describe two methods for preparation of alkenes. 3

7. (A) What are carbohydrates? Explain oliosaccharides. 4
(B) Describe effects of global warming. 3

8. (A) Define hard water. How temporary hardness can be removed?
(B) Explain process for the preparation of urea.

9. (A) Give details of any four fractions of petroleum.
(B) What are the effects of ozone depletion? . PART-IH (Practical Part)

10.
(A) (i) Write downj the apparatus required to standardize HC1 solution. 2
(ii) Write down procedure to determine exact molarity of NajCo volumetrically. 3

(B) (i) Write down the apparatus required to cassify substances as acidic, basic and neutral.2
(ii) Write down procedure to classify substances as acidic, basic and neutral. 3

(C) (i) Write down the apparatus required to identfy saturated and unsaturated organic compounds. 2
(ii) Write down the procedure to identify saturated and and unsaturated organic compounds by KMnO, test. 3

Past Papers of  Biology 10th Class Lahore Board 2016
LAHORE BOARD 2016 10TH CLASS PAST PAPER
BIOLOGY Time Allowed: 15 Minutes
PAPER-II (Objective Type) GROUP-II Max. Marks: 12

Note: Four possible answers A, B, C and D to each question are given. The choice which you think is correct, fill that circle in front of that question with Marker or Pen ink in the answer-book. Cutting or filling two or more circles will result in zero mark in that question.

1. Alcoholic fermentation is processed by
(A) Virus
(B) Bacteria
(C) Fungi
(D) Algae

2. Alternate form of gene is called
(A) D.N.A
(B) Gamete
(C) Chromosome
(D) Allele

3. As per normal chemical composition the amount of water
(A) 60%
(B) 70%
(C) 80%
(D) 95%

4. Is prepared from opium
(A) Vaccine
(B) Aspirin
(C) Morphine
(D) Paracetamol

5. In every 100 ml of human blood concentration of glucose is maintained as
(A) 180-200mg
(B) 150-180mg
(C) 100-150mg
(D) 80-120mg

6 Is not a part of carpel:
(A) Ovary
(B) Anther
(C) Stigma
(D) Style

7 Cytosine always pair with
(A) Guanine
(B) Thiamine
(C) Adenine
(D) Hydrogen

8 Naturally found in graphite and diamond
(A) Nitrogen
(B) Carbon
(C) Oxygen
(D) Hydrogen

9 Stomata are frequently present on:
(A) Upper side of leaf
(B) Lower side 3 . of leaf
(C) Both sides of leaf
(D) Stem

10 Ovary is ripened into
(A) Seed
(B) Flower
(C) Fruit
(D) Sweetness

11 The part of the brain responsible for muscle movement, interpretation of the senses and the memory is
(A) Cerebrum
(B) Pons
(C) Medulla oblongata
(D) Cerebellum

12 Some bones prepare:
(A) Mucous
(B) Blood cells
(C) Oxygen
(D) Hormones
2. Write short answers to any SIX (6) questions: (12)
(i) Define nasal cavity.
(ii) Define vocal cords.
(iii) Why does blood become thick due to smoking?
(iv) Define ligaments.
(v) What are biceps and triceps?
(vi) Differentiate between flexor and extensor muscle.
(vii) Define predation with an example.
(viii) What are the effects of global warming?
(ix) What is meant by osmosis?

3. Write short answers to any FIVE (5) questions: (10)(i) What are hydrophytes? Give an example.
(ii) What is hilus?
(iii) Define dialysis. Name its two basic types.
(iv) What is difference between self pollination and cross pollination?
(v) What is vector in genetic engineering?
(vi) What is meant by single cell protein?
(vii) What is meant by gene therapy?
(viii) What is reproduction? Name its two basic types?

4. Write short answers to any FIVE (5) questions: (10)(i) What is meant by salutatory impulses?
(ii) What are meanings? Write down their function.
(iii) Differentiate between transcription and translation.
(iv) Differentiate between gene and allele.
(v) Differentiate between breeds and varieties.
(vi) What is meant by analgesics? Give an example.
(vii) Define hallucinogens.
(viii) Differentiate between bactericidal and bacteriostatic antibiotics.

(SECTION-II)

Note: Attempt any THREE questions:
5. (a) Write a complete note on pneumonia. 4
(b) How plants remove extra carbon dioxide and oxygen outside? 3

6. (a) Explain structure and function of pituitary gland. 4
(b) What is arthritis, describe its two types? 3

7. (a) What is AIDS? Give its causes. 4
(b) Explain binary fission with the help of amoeba. 3

8. (a) Write a note on Mendel’s Law of Segregation. 4
(b) Write a note on nitrogen fixation. 3

9. (a) Write a note on batch fermentation and continuous fermentation in fermenter. 4
(b) Describe the mode of action of vaccines. 3

PART-III (Practical Part)

Note: Attempt any TWO questions.
A (i) Write the procedure of experiment conducted to identify the presence of carbon dioxide in air exhaled from lungs. 3
(ii) Draw the diagram of experiment set up to detect the presence of tar in cigarette smoke. 2

B (i) You observed experiment to investigate chemical composition of bone. Write procedure for this experiment. 3
(ii) Draw the label diagram of observed Rhizome. 2

C (i) Write down the procedure of experiment for the fermentation of flour. 3
(ii) What is an ecosystem? 2

Past Papers of  Biology 10th Class Lahore Board 2016
LAHORE BOARD 2016 10TH CLASS PAST PAPER
BIOLOGY Time Allowed: 15 Minutes
PAPER-II (Objective Type) GROUP-I Max. Marks: 12

Note: Four possible answers A, B, C and D to each question are given. The choice which you think is correct, fill that circle in front of that question with Marker or Pen ink in the answer-book. Cutting or filling two or more circles will result in zero mark in that question.

1. Complete map of human genome was published in:
(A) 1999
(B) 2001
(C) 2000
(D) 2002

2. Sir Alexander Fleming was awarded the Nobel Prize in:
(A) 1940
(B) 1945
(C) 1950
(D) 1960

3. Alternate forms of genes are called:
(A) Traits
(B) Alleles
(C) Coci
(D) Characters

4. The blood glucose level remains about -— per liter despite eating a meal rich in carbohydrates:
(A) 2 grams
(B) 1 gram
(C) 3 grams
(D) 4 grams

5. Temporal lobe is concerned with:
(A) Hearing and smell
(B) Control of skeletal muscles
(C) Visual information
(D) Both A and B

6. The simple and most common way of asexual reproduction in bacteria is:
(A) Binary fission
(B) Multiple fission
(C) Regeneration
(D) Budding

7. Transmission of characters (Traits) from parent to offspring is called:
(A) Inheritance
(B) Mutation
(C) Regeneration
(D) Reproduction

8. All the ecosystem of the world together form the —:
(A) Population
(B) Biosphere
(C) Community
(D) Habitat

9. For gaseous exchange the leaves and young stems have in their epidermis:
(A) Stomata
(B) Lenticels
(C) Companion cells
(D) Ground cells

10. Calyx is the outer most whorl of the flower and bears the colour:
(A) Red
(B) Green
(C) Blue
(D) White

11. The skeleton found outside the body is called:
(A) Endoskeleton
(B) Exoskeleton
(C) Hydro¬skeleton
(D) Fibro- skeleton

12. Types of neurons according to their work are:
(A) Three
(B) Four
(C) Five
(D) Two

Past Papers of Biology 10th Class Lahore Board 2016
BIOLOGY (New Scheme) Time Allowed: 2:45 hour
PAPER - II (Essay Type) GROUP -1 Max. Marks: 63 (PART-1)

2. Write short answers to any SIX (6) questions: (12)
(i) Define Bronchitis.
(ii) How will you differentiate between a stoma.
(iii) Write the symptoms of asthma.
(iv) What is arthritis?
(v) Define bone with example.
(vi) Define the antagonists muscles.
(vii) Write the name of abiotic and biotic components of Ecosystem.
(viii) What is meant by community?
(ix) Define food chain and give an example of a simple food chain.

3. Write short answers to any FIVE (5) questions: (10)
(i) What is lithotripsy?
(ii) What are the main organs work for homeostasis in man? Explain.
(iii) Write down the names of four organs of urinary system.
(iv) What is meant by dormancy?
(v) Define multiple fission.
(vi) What is continuous fermentation?
(vii) Define single cell protein.
(viii) What is Beta-endorphin? What is its function?

4. Write short answers to any FIVE (5) questions: (10)
(i) What is meant by receptors? Give examples.
(ii) Compare exocrine glands and endocrine glands.
(iii) Define transcription and translation.
(iv) What is meant by nucleosomes?
(v) What is “Punnet Square”?
(vi) What is difference between analgesic and antibiotic?
(vii) What is meant by “Social Stigma”?
(viii) What are Hallucinogens?

(SECTION-II)

Note: Attempt any THREE questions:

5. (A) What is pneumonia, describe its symptoms and causes? 4
(b) What steps are -involved in the formation of urine in the kidney? 3

6. (A) Describe the structure and function of thyroid gland and pancreas. 4
(b) Explain three types of joints. 3

7. (A) Describe the types of seed germination, 4
(b) Describe the advantages and disadvantages of the vegetative propagation in plants. 3

8. (A) Explain artificial selection. 4
(b) What is parasitism? Explain its two types with examples. 3

9. (A) Write a note on application of fermentation. 4
(b) Describe drug addiction and associated problems. 3

PART-III (Practical Part)

Note: Attempt any TWO questions.

A (i) Write down the procedure of experiment to show the presence of tar in cigarette smoke.. 3
(ii) Draw the diagram of the experimental apparatus measuring the inhaled and the exhaled air. 2

B (i) You performed experiment to investigate chemical composition of bone. Write procedure for this experiment. 3
(ii) Draw the labelled diagram of onion bulb. 2

C (i) Write the procedure of experiment to show the necessity of oxygen for seed germination. 3
(ii) Define biotic and abiotic components of an ecosystem. 2

10TH CLASS GUJRANWALA BOARD 2015
BIOLOGY (New Course) Time Allowed: 2:45 Minutes
PAPER-II (Essay Type) GROUP - II Max. Marks: 63

Note: Section-I is compulsory. Answer any THREE (3) questions from Section-II and Answer any TWO (2) questions from Section-III.

(SECTION-I)

2. Write short answers to any SIX questions: (2 x 6 = 12)
(i) What is meant by gaseous exchange?
Also define breathing.
(ii) Differentiate between stomata and lenti cel Is.
(iii) What is the difference between breathing and respiration?
(iv) Define the term “homeostasis”.
(v) Define thermoregulation and excretion.
(vi) What is meant by pressure filtration?
(vii) Define coordination and also write its two types.
(viii) Differentiate between receptors and effectors.
(ix) What is the difference between stimuli and response?

3. Write short answers to any FIVE questions: (2x5 = 10)
(i) Write any two functions of skeletal system.
(ii) What are osteocytes?
(iii) Define osteoporosis.
(iv) Differentiate between sexual and asexual reproduction.
(v) What are endospores?
(vi) Differentiate between genotype and phenotype.
(vii) Write two points of Watson-Crick Model of DNA.
(viii) Define gene.

4. Write short answers to any FIVE questions: (2 x 5 = 10)
(i) Write two examples of predation.
(ii) What is intraspecefic competition?
(iii) What is meant by denitrification?
(iv) Write two benefits of the use of fermenter.
(v) What are plasmids?
(vi) What is meant by recombinant DNA?
(vii) Define antibiotics.
(viii) What is meant by vaccination?

(SECTION-II)

5. (A) Write a note on amphysema and asthma.
(B) Describe in detail xerophyte plants.

6. (A) Describe the structure of outer layer and middle layer of human eye.
(B) What is arthritis? Describe its two types.

7. (A) What do you know about Multiple Fission?
(B) Write down the conditions for seed germination.

8. (A) Who was Mendel? Why Mendel selected pea plant for his experiments?
(B) Explain carbon cycle and draw its diagram.

9. (A) What is meant by single cell protein? What steps world has taken in this regard?
(B) Define vaccines with their importance.

SECTION-III (PRACTICAL PARTY

Note: Attempt any Two parts.

10. (A) (i) Draw the setup of experiment to show the presence of tar in smoke of cigarettes.
(ii) Which compound is formed when carbon dioxide reacts with lime water?

(B) (i) You have put three pieces of sheep’s bone in NaOH, dilute HC1 and water. After an hour observe the changes and record them.
(ii) What are good sources of calcium in the food?

(C) (i) Prepare a list of apparatus for fermentation of flour and write its procedure.
(ii) Omnivores are included in which type of consumers?

Past Papers of  Biology 10th Class Gujranwala Board 2015
GUJRANWALA BOARD 2015 10TH CLASS PAST PAPER
BIOLOGY Time Allowed: 15 Minutes
PAPER-II (Objective Type) GROUP-I Max. Marks: 12

Note: Four possible answers A, B, C and D to each question are given. The choice which you think is correct, fill that circle in front of that question with Marker or Pen ink. Cutting or filling two or more circles will result in zero mark in that question.

1 Mature bone cells are called:
(A) Compact bone
(B) Osteophytes
(C) Cartilage
(D) Fibrous cartilage

2 The anti-evolution idea is called:
(A) Breeding theory
(B) Special evolution theory
(C) Theory of special creation
(D) Darwinism

3 The drugs used to reduce pain are known as
(A) Analgesics
(B) Antiseptics
(C) Antibiotics
(D) Sedatives

4 Number of carcinogens present in tobacco smoke is:
(A) 4,000
(B) 55
(C) 50
(D) 40

5 Type of symbiosis in which both partners are benefited and neither is harmed is called:
(A) Mutualism
(B) Symbiosis
(C) Commensalism
(D) Parasitism

6 Alternate from of gene is called;
(A) Translation
(B) Allele
(C) Genotype
(D) Phenotype

7 Disease caused by deficiency of iodine in food is called:
(A) Diabetes mellitus 4
(B) Hyperthyroidism
(C) Dwarfism
(D) Goiter

8 Optimum temperature for seed growth is :
(A) 25-30°C
(B) 30-35°C
(C) 15-25°C
(D) 35-38°C

9 Fungi used in alcoholic fermentation is called
(A) Saccharomyces cervisiae
(B) Basidiomycetes
(C) Zygomycetes
(D) Algin

10 Broad leaves with large number of stomata on the upperisde are found in.
(A) Xerophytes
(B) Hydrophytes
(C) Halophytes
(D) Trees

11 A corm develops into new garlic plant. This process of reproduction is called.
(A) Gametogenesis
(B) Vegetative reproduction
(C) Meiosis

(D) Regeneration
12 Hypermatropia is also called.
(A) Long sight
(B) Short sight
(C) Myopia
(D) Night I blindness

Past Papers of  Biology 10th Class Gujranwala Board 2015

BIOLOGY (New Scheme) Time Allowed: 2:45 hour
PAPER - II (Essay Type) GROUP -1 Max. Marks: 63

Note: Section-I is compulsory. Answer any THREE (3) questions from Section-H and Answer any TWO (2) questions from Section-in.

(SECTION-I)

2. Write short answers to any SIX questions: (2x6 = 12)
(i) What are stomata?
(ii) How lenticels are different from stomata?
(iii) Describe the symptoms of asthma.
(iv) How zerophytes control the amount of water in their bodies?
(v) How plants excrete their metabolic waster?
(vi) Describe the role of “Bowman’s Capsule” in the nephron.
(vii) How unicellular organisms coordinator their functions?
(viii) Define stimuli. Also give example.
(ix) How ears maintain body balance?

3. Write short answers to any FIVE questions: (2x5 = 10)
(i) Define cartilage and give example.
(ii) Write the difference between hyaline cartilage and elastic cartilage.
(iii) Define bone and give example.
(iv) Define fragmentation and give example.
(v) What is the difference between bulbs and corms?
(vi) Define heterozygous and homozygous.
(vii) Differentiate between dominant and recessive.
(viii) Define genotype and phenotype

4. Write short answers to any FIVE questions: (2x5 = 10)
(i) What are endoparasites? Give two examples.
(ii) What is acid rain? Give its one ill effect.
(iii) What do you know about biotic and abiotic components of ecosystem?
(iv) How lactic acid fermentation is carried out?
(v) What do you know about continuous fermentation process?
(vi) Define genetic engineering.
(vii) Write effects of hallucinogens.
(viii) Why sedative drugs are used?

Past Papers of  Biology 10th Class Lahore Board 2015
LAHORE BOARD 2015 10TH CLASS PAST PAPER
BIOLOGY Time Allowed: 15 Minutes
PAPER-II (Objective Type) GROUP-II Max. Marks: 12

1. The correct match for the Fermentation product and organism involved is:
(A) Formic acid Saccharomyces
(B) Ethanol Saccharomyces
(C) Ethanol Aspergillus
(D) Glycerol Aspergillus

2. Reduce the possibility of infection on skin:
(A) Analgesics
(B) Antibiotics
(C) Disinfectants
(D) Antiseptics ✓

3. Genotype in which Gene Pair contains two identical Alleles is called:
(A) Homozygous ✓
(B) Heterozygous
(C) Hemizygous
(D) Homologous

4. Organ responsible for filtering the blood is:
(A) Intestine
(B) Brain
(C) Stomach
(D) Kidney ✓

5. The middle layer of eye is:
(A) Sclera
(B) Retina
(C) Choroid ✓
(D) Cornea

6. Fourth whorl of flower is:
(A) Calyx
(B) Corolla
(C) Androecium
(D) Gynoecium

7. Person with Genotype-ii has blood group:
(A) AB ✓
(B) B
(C) O
(D) A

8. Example of Ectoparasite is:
(A) Ascaris
(B) Entamoeba
(C) Lice
(D) Plasmodium

9. Percentage of Carbon Dioxide in expired air during breathing is:
(A) 16%
(B) 04% ✓
(C) 21%
(D) 0.04%

10. Rhizopus reproduces asexually by:
(A) Binary Fission
(B) Spores formation
(C) Budding
(D) Endospore formation

11. Number of bones in skull is:
(A) 22
(B) 08
(C) 14
(D) 80

12. Part of brain that co¬ordinates muscle movements:
(A) Cerebellum
(B) Pons
(C) Medulla Oblongata
(D) Hypothalamus

Past Papers of  Biology 10th Class Lahore Board 2015

BIOLOGY (New Scheme) Time Allowed: 2:45 hour
PAPER - II (Essay Type) GROUP -1 Max. Marks: 63 (PART-1)

2. Write short answers to any SIX (6) questions: (12)

(i) What are Lenti Cells? Write their functions.

(ii) Why does blood become thick due to smoking?

(iii) Define Alveoli.

(iv) Define hydrophytes with an example.

(v) What is meant by osmosis?

(vi) Write four names of parts of urinary system.

(vii) What is meant by myelin sheath?

(viii) What do you know about signalhood?

(ix) What is meant by somatic nervous system?

3. Write short answers to any FIVE (5) questions: (10)

(i) What is osteoporosis? Give at least one reason for this disease.

(ii) Differentiate between biceps and triceps muscles.

(iii) Differentiate between Gout and Osteoarthritis.

(iv) Differentiate between tissue culture and cloning.

(v) Write down the names of reproductive parts of flower.

(vi) Differentiate between translation and transcription.

(vii) State the Law of Segregation of Mendel.

(viii) What do you mean by Phenotype and Genotype?

4. Write short answers to any FIVE (5) questions: (10)

(i) What is biosphere?

(ii) What do you mean by trophic level?

(iii) Define predation.

(iv) What type of help genetic engineering has provided to control Haemophilia and Thalassemia?

(v) Define glycolysis. '

(vi) Define genetic engineering.

(vii) Define pharmacology.

(viii) Write about some drugs from plants and fungi.

(SECTION-II)

Note: Attempt any THREE questions:

5. (a) What is pneumonia? Describe its causes, symptoms and treatment. 4

(b) Write osmotic adjustments in Hydrophytes and Halophytes. 3

6. (a) Describe in detail the Nerve Cell or Neuron. 4

(b) Explain types of Joints. 3

7. (a) Describe Female Reproductive System of Rabbit. 4

(b) Explain germination of seed, describe its two types. 3

8. (a) Why did Mendel select the sweet pea for his experiment? Write some of its characteristics. 4

(b) Write the names of steps of nitrogen cycle and explain only one. 3

9. (a) Explain basic steps in Genetic Engineering. 4

(b) Differentiate between medicinal and addictive drugs. 3

PART-III (Practical Part)

Note: Attempt any TWO questions.

A (i) Write the procedure of demonstration of the presence of tar in cigarette smoke. 3

(ii) What is meant by Dead Space. 2

B (i) Write the observations of binary fission in Amoeba. 3

(ii) What do you know about stem tuber of potato? 2

C (i) Draw and label a diagram of internal structure of maize grain. 3

(ii) Is there any role of lactic acid fermentation in human body? 2

Past Papers of  Biology 10th Class Lahore Board 2015
LAHORE BOARD 2015 10TH CLASS PAST PAPER
BIOLOGY Time Allowed: 15 Minutes
PAPER-II (Objective Type) GROUP-I Max. Marks: 12

1. Sources of variations in the organisms are:
(A) Crossing Over
(B) Mutation ✓
(C) Both A and B
(D) Mitosis

2. Inter-relationship between Organisms and environment is:
(A) Mycology
(B) Physiology
(C) Ecology ✓
(D) Morphology

3. The number of drug addicts in Pakistan is currently estimated to be about
(A) 1000,000
(B) 800,000
(C) 600,000
(D) 425,000 ✓

4. When was the work on Genetic Engineering started:
(A) 1930
(B) 1940
(C) 1944
(D) 1970 ✓

5. Which disease is not related to lungs:
(A) Asthma ✓
(B) Emphysema
(C) Myopia
(D) Pneumonia

6. The branch of Biology in which we study about inheritance is called:
(A) Microbiology
(B) Physiology
(C) Genetics ✓
(D) Ecology

7. Who is the writer of Encyclopeadia “Al-Tasrif’:
(A) Abu-Al-Qasim ✓
(B) Al-Farabi
(C) Jabir-bin- Hayan
(D) Aristotle

8. Normally external fertilization occurs in:
(A) In the body
(B) Air
(C) Water ✓
(D) All of these

9. The Cochlea is present in:
(A) External Ear
(B) Middle Ear
(C) Internal Ear ✓
(D) None of these

10. When the human body has low amount of water, then Pituitary Gland secrets:
(A) Vessopressin
(B) Insulin
(C) TSH
(D) Oxytocin

11. The drugs used to reduce the pain are known as:
(A) Antibiotics
(B) Antiseptics
(C) Sedatives
(D) Analgesics ✓

12. An adult person skeleton has hard bones:
(A) 406
(B) 306
(C) 206 ✓
(D) 106

Past Papers of  Biology 10th Class Lahore Board 2015

BIOLOGY (New Scheme) Time Allowed: 2:45 hour
PAPER - II (Essay Type) GROUP -1 Max. Marks: 63 (PART-1)

2. Write short answers to any SIX (6) questions: (12)

(i) Differentiate between Breathing and Respiration.

(ii) Write the structure and function of Alveolus.

(iii) Give two bad effects of smoking.

(iv) Differentiate between Osmoregulation and Thermoregulation.

(v) Write the names of different parts of human Urinary System.

(vi) When Kidneys form Hypotonic and Hypertonic Urine?

(vii) Define Stimuli and Response.

(viii) How brain is protected?

(ix) What is Paralysis? Write its symptoms.

3. Write short answers to any FIVE (5) questions: (10)

(i) Write two functions of bones.

(ii) Describe the role of Ligaments.

(iii) What is Rheumatoid Arthritis? Write its symptoms.

(iv) What is Embryo? Write its parts.

(v) Differentiate between Internal and External Fertilization.

(vi) What are discontinuous variations? Give examples.

(vii) What are hinge joints? Write two examples.

(viii) What is the Theory of Special Creation?

4. Write short answers to any FIVE (5) questions: (10)

(i) Write a short note on Ecological Pyramids.

(ii) Differentiate between Nitrification and Denitrification.

(iii) Define Competition and give example.

(iv) Write any two applications of Fermentation.

(v) Write any two achievements of Genetic Engineering.

(vi) What do you mean by Single Cell Protein?

(vii) Define Sedatives and give examples.

(viii) Write a short note on Mari Juana.

(SECTION-II)

Note: Attempt any THREE questions:

5. (a) How gaseous exchange takes place in plant leaves? 4

(b) How plants remove extra Carbon Dioxide, Oxygen and Water? 3

6. (a) Describe the contributions of Ibnal Hatham in Optics. 4

(b) Describe the structure of Bone. 3

7. (a) Describe the structure of Flower. 4

(b) What is Pollination? Discuss its kinds. 3

8. (a) State Mendel’s Law of Segregation. Explain it with the help of crosses and example. 4

(b) Explain Carbon Cycle. 3

9. (a) Explain four products obtained by using Fermentation. 4

(b) Describe Drug Addiction and associated problems. 3

PART-III (Practical Part)

Note: Attempt any TWO questions.

A
(i) Write down the procedure to show the presence of Tar in Cigarette smoke. Draw the diagram. 3 (ii) What are the effects of Tar on Lungs. ! 2

B
(i) Write down the procedure to demonstrate the effect bf 12 volt D.C. Current on skin muscle of Frog. 3
(ii) What is meant by antagonistic Muscles? Give in example. 2

C
(i) Write down the procedure to investigate the role of Bacteria in the fermentation of milk. 3
(ii) What is Pasteurization? 2