Basic Environmental Microbiology Question Paper

Basic Environmental Microbiology

Course:Bachelor Of Science In Environmental Health

Institution: Kenyatta University question papers

Exam Year:2009

KENYATTA UNIVERSITY
UNIVERSITY EXAMINATIONS 2008/2009
SECOND SEMESTER EXAMINATION FOR THE DEGREE OF BACHELOR
OF SCIENCE (ENVIRONMENTAL HEALTH)

HEH 104:
BASIC ENVIRONMENTAL MICROBIOLOGY

DATE:
MONDAY 30TH MARCH 2009
TIME: 8.00 A.M. – 10.00 A.M.

INSTRUCTIONS:
• Answer all Questions.

SECTION A
-
Answer ALL the questions in this section

1.
List the four divisions of
fungi. (4
marks)

2.
Outline the functions of metachromatic granules of bacteria cell. (2 marks)

3.
Describe the cell wall of gram positive bacteria.

(4 marks)

4.
List four ways in which viruses can be transmitted from one organism to another.
(4 marks)

5.
Outline the advantages and disadvantages of complex media.
(2 marks)

6.
Outline two beneficial contribution of the lactic acid bacteria.
(2 marks)

Page 1 of 2

7.
Explain the cause of rotten eggs smell present in anaerobic environment.
(2 marks)

SECTION B
- This section consist of one compulsory questions.

8.
a)
Discuss The importance of Thiobacillus species in relationship to
leaching.
(5
marks)
b)
Discuss economic importance of fungi.

(15 marks)

SECTION C
-
This section consists of Three Questions
-
Answer only TWO Questions.

9.
Discuss in details sterilization by chemical
methods.
(15
marks)

10.
Discuss common ingradients used in culture media.

(15 marks

11.
Discuss in details bacterial cells appendages.

(15 marks)

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