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
Past Papers of Biology 10th Class Lahore Board 2015
BIOLOGY (New Scheme) Time Allowed: 2:45 hour
PAPER - II (Essay Type) GROUP -II Max. Marks: 63 (PART-1)
(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
Post a Comment