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Bota 220: Phycology Question Paper

Bota 220: Phycology

Course:Bachelor Of Education Science

Institution: Kabarak University question papers

Exam Year:2012

KABARAK
UNIVERSITY
UNIVERSITY EXAMINATIONS
2011/2012 ACADEMIC YEAR
FOR THE DEGREE OF BACHELOR OF EDUCATION SCIENCE

BOTA 220: PHYCOLOGY
DAY: MONDAY

DATE: 16/04/2012
TIME: 8.00 – 10.00 P.M.

STREAM: SESS 2
INSTRUCTIONS TO CANDIDATES
Answer ALL questions from section A and any FOUR questions from section B.
Illustrate your answers with suitable diagrams whenever necessary.
Duration of the examination: 3 hours.

SECTION A: 30 MARKS
Attempt ALL
1. (a) List any four characteristics of algae.

(2 marks)
(b) Distinguish between the following.

(2 marks)
(i) Benthic and Epiphytic algae.
(ii) Flagellated and coenobial colonies.

(c) Give the function of the following organelles in algae.

(4 marks)
(i) Endoplasmic reticulum
(ii) Pyrenoid
(iii) Eyespot (stigma)

(iv) Flagella.

2. (a) List the modes of nutrition found in algae.

(4 marks)
(b) Name the habitats of algae.

(4 marks)

3. (i) Write short notes on the following terms used in reproduction of algae. (4 marks)
(a) Fragmentation.

(b) Budding.
(c) Zoospores.
(d) Hypnospores.

(ii) Distinguish between the following types of sexual reproduction in algae. (4 marks)
(a) Isogamy and heterosogamy.
(b) Anisogamy and Oogamy.

4. By use of a labeled diagram describe the structure of a prokaryotic cell. (8 marks)

Section B (40 marks)
Attempt any FOUR questions
5. Outline the morphological and physiological features used in the classification of algae.

(10 marks)
6. Using relevant examples describe the gametic and zygotic life cycles in algae. (10 marks)
7. Discuss the factors that affect photosynthesis in algae.

(10 marks)
8. Discuss the mechanisms used by phytoplankton to avoid sinking.
(10 marks)
9. Discuss the economic importance of algae.

(10 marks)
10. Using cellular structures, distinguish between prokaryotic and eukaryotic algae.

(10 marks)

Bota 220: Phycology Question Paper

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