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Epe200: Biological Science Question Paper

Epe200: Biological Science

Course:Biological Science

Institution: Moi University question papers

Exam Year:2014

EPE201: BIOLOGICAL SCIENCE
INSTRUCTIONS
Answer question ONE which is compulsory and carries 30 marks and any other TWO questions which carry 20 marks each.

1. i) Name any FOUR life processes shown by living things. (2 marks)

ii) What is meant by anaerobic respiration ( 2 marks)

iii) Organisms respond to a variety of stimuli. what is a stimuli as used in this sense? (2 marks)

iv) define "development" as a characteristic of living things (2 marks)

v) Explain what is meant by sexual reproduction (2 marks)

vi) Explain the process of heterotrophic nutrition. (2 marks)

vii) Give the structures of gaseous exchange in the following organisms;
a) mosquito larvae
b) am adult locust. (2marks)

viii) Define genetics. (2 marks)

ix) Outline any TWO reasons why it is important to study biology. (2 marks)

x) Give TWO reasons of classifying organisms. (2marks)

xi) Name any FOUR types of leaf forms that may be used in classifying plants. (2 marks)

xii) State any FOUR kingdoms into which organisms may be grouped giving one example in each case. (2marks)

xiii) Define the term "species" as used in classification of organisms. (2marks)

xiv) Carolus Linnaeus was a Swedish biologist who is regarded as the father of modern classification of organisms. explain his contributions in classification. (2marks)

xv) Explain the meaning of environmental pollution (2marks)

2. I) Name any TWO physiological functions that take place in a plant leaf. (2marks)

ii) Outline any FOUR adaptations of a leaf that makes it suited for the major function it carries in plants. (4 marks)

iii) What are vascular bundles and what role do they play in a plant (4marks)

iv) Explain the process of photosynthesis in plants (10 marks)

3. I) What is "blood". (2marks)

ii) Name any THREE components of blood stating the function of each. (6 marks)

iii) Explain what is meant by " double circulation" in describing the pumping action of the heart. (2marks)

iv) What is meant by gametogenesis (2marks)

4. the environment is affected by factors that are categorised as either biotic or abiotic
I) With the aid of examples distinguish between biotic and abiotic factors (6 marks)

ii) Explain the meaning of environmental pollution (2marks)

iii) Discuss any TWO human activities that may pollute the environment. (6marks)

iv) Briefly explain how man can control environmental pollution. (6marks)

Epe200: Biological Science Question Paper

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