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Bota 210: Cryptogams Session I Year 2010 Question Paper

Bota 210: Cryptogams Session I Year 2010

Course:Bachelor Of Education Science

Institution: Kabarak University question papers

Exam Year:2010

COURSE CODE: BOTA 210
COURSE TITLE: CRYPTOGAMS

STREAM: SESSION I
DAY: THURSDAY
TIME: 9.00 – 11.00 A.M.
DATE: 12/08/2010

INSTRUCTIONS:
ANSWER ALL QUESTIONS IN SECTION A AND ANY TWO IN SECTION B

SECTION A (40 MARKS)
1. (a) Explain what is meant by the following terms;
(i) Saprophyte
(ii) Parasite
(iii) Autotrophics
(iv) Heterotrophic
(v) Heterohiallic (5 marks)

(b) Differentiate between the following pairs
a. Transduction and Conjugation
b. Zoosporangium and Gematengium
c. Isogamous and Oogamous
d. Prokaryole and Eukaryote
e. Thalophyta and Embrophyta (5 marks)

2. (a) Identify citing appropriate examples, three morphological forms of bacteria.
(6 marks)
(b) State two classes of autotrophic bacteria and indicate their source of energy.
(4 marks)
3. (a) Explain what alternation of generation is. (2 marks)
(b) State two differences between gematophyte and saprophyte. (4 marks)
(c) Describe four difference between fungi and bacteria. (4 marks)

4. Describe with aid of a simple diagram the life cycle of a named fresh water algae.
(10 marks)

SECTION B (30 MARKS)
4. Describe in details the Ecch importance of bacteria. (15 marks)

5. Describe the criteria used in classification of fungi and explain the salient differences
between Ascomycetes and Basidiomycetes. (15 marks)

6. Bryophytes are considered to be primitive land plants. Describe the characteristics
that make them primitive and state what features they share with Algae and higher
plant. (15 marks)

Bota 210: Cryptogams Session I Year 2010 Question Paper

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