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Main Preparatory  Question Paper

Main Preparatory  

Course:Biology

Institution: Form 2 question papers

Exam Year:2016



SECTION A (20MARKS)
1. What is the role of the following: (2mks)
a. Pancreatic amylase
b. Rennin
2. Write the deficiency disease of the lack of the following elements (6mks)
a. Vitamin B 1
b. Vitamin E
c. Vitamin D
d. Vitamin K
e. Sodium chloride
f. Iodine
3. Give the reagents required for testing the following food stuff (3mks)
a. Ascorbic acid
b. Proteins
4. State three causes of tooth decay (3mks)
5. Distinguish between competitive and non-competitive inhibitors (4mks)
6. Explain the importance of the following
a. Chewing food (1mks)
b. The hormone gastrin (1mk)
SECTION B (20 MARKS)
7. State four factors that affect energy requirements in man (4mks)
8. State three functions of enzymes in living organisms (3mks)
9. State functions of large intestines (colon) in human alimentary canal (4mks)
10. Name the parts of the chloroplast where each of the following activities takes place (2mks)
a. Dark stage
b. Light stage
11. Other than carbohydrates, name three other food substances manufactured during photosynthesis (3mks)
12. What would happen in each of the following
a. If a plant cell is kept in : (2mks)
i. Concetrated salt solution
ii. Distilled water
b. If a red blood cell is kept in:(2mks)
i. Distilled water
ii. Concetrated salt solution
SECTION C (40MKS)
13. (a) What is assimilation (2mks)
b. Describe the fate of the end products of digestion in the bodies of human beings (18mks)
14. (a) What is meant by the term digestion (2mks)
b. Describe how the mammalian small intestine is adapted to its function (18mks)


 

Main Preparatory question paper



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