Form 2 Biology Question Paper

Form 2 Biology

Course:Biology

Exam Year:2012

ST. BERNARD SECONDARY SCHOOL
END OF TERM ONE EXAMINATION
FORM TWO BIOLOGY
SECTION A
1. What is a specimen t? (1 mk)

2. If the nucleus of a cell is removed, what would happen to that cell (1 mk)

3. Explain four roles of osmosis in living organisms. (4 mks)

4. State three physiological process (3 mks)

5. Give two example of vascular bundle (2 mks)

6. State two primary functions of a plant routs ( 2 mks)

7. What is the function of the root cup? (1 mk)

8. Outline three examples of transpiration (3 mks)

9. State four forces that are involved in transportation of water and mineral salts (4 mks)

10. Explain why when transpiration a seedling, it is advisable to remove some of its leaves (2 mks)

11. Give a reason why there are fewer stomata on the upper side of the leaf than the lower side (2 mks)

12. Differentiate between the following (4 mks)
i) Single and double circulation
ii) Semi lunar and atrium- ventricular valve

13. State one function of mammalian blood other than transport (1 mk)

SECTION TWO
14. ( Attempt only on question in this number)
a) Describe the blood clotting process
b) Describe the blood circulation
(20 mks)

15. State any two adaptation of red blood cells to their functions ( 2 mks)

16. State two proteins in the blood which are responsible for determining the blood group of a person (2 mks)

17. People can die when they inhale gases from burning charcoal in poorly ventilated rooms. Explain the cause of this death. (3 mks)

18. Explain how the following plant adaptations minimize the rate of transpiration
i) Sunken stomach
ii) Leaf folding (2 mks)

19. Highlight two adaptation of Ilium to its function ( 5 mks)

20. Describe how a mammalian heart is adapted to its function (5 mks)

21. Give a reason why the digestive of starch starts in the mouth the help of salivary analyze is not continue in the stomach.

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