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Bota 210: Cryptogams Question Paper

Bota 210: Cryptogams

Course:Bachelor Of Education Science

Institution: Kabarak University question papers

Exam Year:2008

KABARAK UNIVERSITY
EXAMINATIONS
2008/2009 ACADEMIC YEAR
FOR THE DEGREE OF BACHELOR OF EDUCATION
SCIENCE
COURSE CODE: BOTA 210
COURSE TITLE: CRYPTOGAMS
STREAM: SESSION IV
DAY: FRIDAY
TIME: 4.00-6.00 P.M.
DATE: 28/11/2008
INSTRUCTIONS:
ANSWER ALL QUESTIONS IN SECTION A AND ANY TWO IN
SECTION B.

SECTION A (40 MARKS)
1. Differentiate
a) Soredium and basidium
b) Diplococcus and tetracoccus
c) Septate and aseptate
d) Diplobacillus and Streptobacillus
e) Biotroph and Saprotroph (10 Marks)
2. By use of a simple diagram explain the general life cycle of fresh water green algae
(10 Marks)
3. a) What do you understand by alternation of generation? Give examples
(6 Marks)
b) How des haplontic life cycle differ from diplontic life cycle (4 Marks)
4. By means of a simple well labeled diagram, outline the general life cycle of a
bryophyte (10 Marks)
SECTION B (30 Marks)
5. Discuss the economic importance of Bacteria (15 Marks)
6. a) What effects do the following bacteria have on plant life: Azotobacter; Rhizobium,
nitrosomonas, nitrobacter. (10 Marks)
b) Describe the vegetative structure of bread mold (5 Marks)
7. a) Explain the differences between zygomycetes and ascomycetes
(8 Marks)
b) What is the economic importance of fungi (7 Marks)

Bota 210: Cryptogams Question Paper

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