Introduction To Environmental Microbiology Question Paper

Introduction To Environmental Microbiology

Course:Bachelor Of Science In Public Health

Institution: Kenyatta University question papers

Exam Year:2012

KENYATTA UNIVERSITY
UNIVERSITY EXAMINATIONS 2011/2012
SECOND SEMESTER EXAMINATION FOR THE DEGREE OF BACHELOR OF
SCIENCE (POPULATION HEALTH)
PPH 108: INTRODUCTION TO ENVIRONMENTAL MICROBIOLOGY
DATE:Friday 30th March 2012 TIME:8.00a.m – 10.00a.m
______________________________________________________________________________

INTRODUCTION
SECTION A (20 marks, Answer all questions account to 4 marks)

1. Explain the growth and nutritional requirements of bacteria.[4marks]

2. Outline the Baltimore classification system of viruses.[4marks]

3.Define sterilization and explain the operation of an autoclave specifying the optimum conditions involved. [4marks]

4.Explain the classification of mycoses. [4marks]

5. List the kind of micro-organisms which live in soil and specify the characteristics of each.[4marks]

SECTION B (50 marks, question one is compulsory and any other two questions)

1.Discuss the role of environmental micro-organisms in the elimination of a wide range of pollutants and wastes from the environment to promote a sustainable development of our society with low environmental impact. [20marks]

2. Discuss the various ecological relationship that exist between environmental
microorganisms, human, plants and animals. [15marks]

3.Discuss Abiotic factors that limit the development of micro-organisms in the
environment.[15marks]

4.Discuss the role of environmental micro-organisms in carbon metabolism (carbon cycle). [15marks]

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