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Plant Function Question Paper

Plant Function

Course:Bachelor Of Education Science

Institution: Kenyatta University question papers

Exam Year:2008

KENY ATTA UNIVERSITY
UNIVERSITY EXAMINATIONS
2007/2008
SELF-SPONSORED
PROGRAM - SCHOOL BASED
EXAMINATION
FOR THE DEGREE OF BACHELOR
OF EDUCATION
AND
BACHELOR OF SCIENCE
SBT 201: PLANT FUNCTION
DATE: Wednesday 2nd January 2008
TIME:
10.30-12.30pm
INSTRUCTIONS
Answer All questions in Section A and any One question in Section B. Answers to
Section A should be concise and answered in the spaces provided in the question paper.
Section A: Short answer questions.
(5 marks each)
1.
Explain the mode of action of enzymes.
2.
Distinguish between a true solution and a colloid
3.
Write short notes on the hydrogen ion concentration.
4.
Explain what happens when a plant cell is placed in hypotonic, isotonic and hypertonic solutions .
5.
Comment on the respiratory quotients of substrates.
6.
Briefly describe the photosynthetic pigments found in the plant kingdom.
7.
Briefly discuss the physiological effects of auxins.
8.
Distinguish between the following terms:
(a)
Oligosaccharides and monosaccharides
(b)
Amylopectin and amylose
(c)
Hydroponics and aeroponics
(d)
Glycolipids and phospholipids
(e)
Apoenzyme and prosthetic group

Section B: Essays - Answer Any One question (30 marks each)
1.
Discuss the factors that affect the rate of photosynthesis.
2.
Write an essay on the properties of colloids.
3.
Discuss the properties of enzymes.