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Bota 210: Cryptogams 2008/2009 Academic Year Question Paper

Bota 210: Cryptogams 2008/2009 Academic Year

Course:Bachelor Of Education Science

Institution: Kabarak University question papers

Exam Year:2009

INSTRUCTIONS TO CANDIDATES:
Answer ALL Questions in Section A and any two in Section B

SECTION A (40 MARKS)
1. (a) Write explanatory notes on the following;
(i) Anisogamy (2 Marks)
(ii) Alternation of generation (2 Marks)
(b) Differentiate between the following;
i) Basidium and ascus
ii) Diplococcus and tetracossus
iii) Diplobacillus and streptobacillus (6 Marks)
2. With aid of diagram describe the general life cycle of a fresh water algae. Showing
sexual and asexual stages. (10 Marks)
3. (a) State the criteria used in the classification of fungi. (2 Marks)
(b) List the characteristics shared by all groups of algae. (3 Marks)
(c) Explain the salient differences between Ascomycetes and Basidiomycetes.
(5 Marks)
4. (a) State the evolutionary trends that relate Bryophytes to green algae.
(4 Marks)
(b) Describe characteristics shared by Bryophytes and vascular plants. (6 Marks)
SECTION B (30 MARKS)
5. Discuss the ecological significance of Fungi. (15 Marks)
6. Describe and illustrate the life of a typical moss. (15 Marks)
8. Explain how each of the groups early land plant is still dependent on water for
the completion of their life cycle. How does this limit their distribution?
(15 Marks)

Bota 210: Cryptogams 2008/2009 Academic Year Question Paper

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