Bota 411:Mycology April 2009 Question Paper

Bota 411:Mycology April 2009

Course:Bachelor Of Education Science

Institution: Kabarak University question papers

Exam Year:2009

KABARAK UNIVERSITY
EXAMINATIONS
2008/2009 ACADEMIC YEAR
FOR THE DEGREE OF BACHELOR OF EDUCATION SCIENCE
COURSE CODE: BOTA 411

INSTRUCTIONS:
Answer All questions in Section A and Any TWO from Section B
SECTION A. (40 MARKS)
1. (a) Explain the meaning of the following terms in relation to the nutritional modes of fungi
i. Biotroph
ii. Necrotroph
iii. Saprotroph
iv. Facultative Saprotroph
v. Obligate Saprophyte (5 Marks)
(b) Describe the features used in classification of fungi. (5 Marks)

2. (a) State the four methods of A sexual reproduction occurring in fungi.
(b) Distinguish, with aid of labelled diagram, between:
(i) Endospore and conidia (4 Marks)
(ii) Oidia and chlamydospore. (4 Marks)
3. Describe and illustrate each of the following process
(a) Planoganetic capulation
(b) Ganetangial contact
(c) Gametengial copulation
(d) Anisoplanogametic copulation
(e) Spermatization (10 Marks)

4. Describe the structure of the mycelium in Rhizopus and state its mode of nutrition. (5 Marks)

5. (a) Differentiate between;
(i) Homothallic and heterottallic
(ii) Cleistothecium and a pothecium
(iii) Ascus and basidium
(iv) Zoospare and Zoosporangia (8 Marks)

SECTION B. (30 MARKS)
6. Write an essay on culture and farming of mushrooms. (15 Marks)

7. Discuss the economic importance of fungi. (15 Marks)

8. Describe in details the life cycle and characteristic features of Basidiomycetes.
(15 Marks)

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