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Basic Biology Ii Question Paper

Basic Biology Ii

Course:Certificate Of Pre-University Biology

Institution: Kabarak University question papers

Exam Year:2008

INSTRUCTIONS TO CANDIDATES:
Answer ALL questions in Section A and any Two questions in Section B

Section A (40 marks)
1. Explain:
(a) Why protein is an important nutrient component in animals (3 marks)
(b) the role of the liver in processing ingested food (4 marks)
2. (a) Differentiate between the following ecological terms: community, ecosystem,
biosphere (3 marks)
(b) Outline two mechanisms by which populations interact (2 marks)
3. Outline the major characteristics of a bird’s respiratory system (3 marks)
4. (a) Define evolution and state 3 mechanisms by which evolution occurs (4 marks)
(b) Differentiate between Darwin and Larmack’s evolution theories (4 marks)
5. (a) In animals, movement is very important for two major reasons. Name them
(2 marks)
(b) Differentiate between the main skeleton types found in animals. (6 marks)
(c) Describe the events leading to a muscle contraction (3 marks)
6. (a) Outline the significance of the main fertilization types found in animals
(4 marks)
(b) By use of a diagram only, show reproduction by fission and give an example
of an organism where it occurs (2 marks)
Section B (30 Marks)
7. Discuss the transport mechanisms of blood (15 marks)
8. Describe feedback mechanisms and outline the events that take place when the human
blood (i) pH falls below normal (ii) sugar rises above normal (15 marks)
9. Differentiate between the main circulatory systems found in animals and describe blood
circulation in mammals (15 marks)

Basic Biology Ii Question Paper

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