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Bota 120: Basic Botany Ii Question Paper

Bota 120: Basic Botany Ii

Course:Basic Botany Ii

Institution: Kabarak University question papers

Exam Year:2010

KABARAK UNIVERSITY
UNIVERSITY EXAMINATIONS
2010/2011 ACADEMIC YEAR
FOR THE DEGREE OF BACHELOR OF EDUCATION SCIENCE
COURSE CODE: BOTA 120
COURSE TITLE: BASIC BOTANY II
STREAM: Y1 S2

INSTRUCTIONS TO CANDIDATES:

1. Answer ALL questions in SECTION A and ANY TWO from SECTION B

SECTION A (40 MARKS)

1. a) Define the following terms:
i. Ecology
ii. Ecosystem
iii. Biological spectrum
iv. Xerophytes
v. Community (5 marks)

b) Explain the concept of energy flow in atypical ecosystem. (5 marks)

2. a) Describe biogeochemical cycle and give two examples (6 marks)

b) Use a simple diagram to describe the hydrological cycle (4 marks)

3. a) Define the term soil profile? (2 marks)

b) Use a simple diagram to explain the composition and characteristic of each
zone (8 marks)

4. Discuss the environmental components of an ecosystem (10 marks)

SECTION B (30 MARKS)

5. Ecosystems show complex interrelation between plants and animals. Describe the
roles played by animals in a forest, aquatic and grass savannah ecosystem.
(15 marks)

6. Describe how water plants cope with reduced gaseous exchange, reduced
transpiration and reduced light in an aquatic ecosystem such as a lake. (15 marks)

7. Discuss the Savanna Ecosystems in Kenya (15 marks)

Bota 120: Basic Botany Ii Question Paper

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