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Basic Metabolism Question Paper

Basic Metabolism

Course:Bachelor Of Science In Biology

Institution: University Of Nairobi question papers

Exam Year:2008

UNIVERSITY OF NAIROBI
SECOND YEAR EXAMINATIONS FOR THE DEGREE OF BACHELOR OF SCIENCE BIOLOGY, BACHELOR OF SCIENCE IN MICROBIOLOGY AND BIOTECHNOLOGY AND BACHELOR OF SCIENCE GENERAL
SBT 202: PRINCIPLES OF BACTERIOLOGY
Date: 21 December 2010
INSTRUCTIONS
SECTION A (Answer all questions each being 3 marks)
1. Distinguish between facultative and aero-tolerant anaerobes.
2. During heat sterilization what factors are considered to assure destruction of all microorganisms.
3. What factors limit bacterial growth in the stationary phase of the bacterial growth curve?
4. Briefly describe how liquid nitrogen is used in the preservation of microorganisms.
5. What are the methods applied in pure culture techniques.
6.Differentiate bacterial flagella and pilli in terms if function, composition and occurrence.
7. Bacteria are a major cause of human and plant diseases. Explain what conditions are necessary for bacteria to be pathogenic.
8. In binomial nomenclature of microorganisms what are the rules that govern the abbreviation of the genus name.
9. How are thermophilic bacteria adapted to the environment.
10. Differentiate between Gram positive and Gram Negative bacteria.

SECTION B
1. You have been employed in a hospital laboratory and have been provided with bacterial samples to identify through staining. Describe the steps you would use in this exercise.
2. Effects of oxygen on bacterial growth.
3. Discuss ways in which microorganisms acquire resistance to antibiotics.
4. Write an essay on bacterial glycocalyx.

Basic Metabolism Question Paper

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