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Proteins And Enzymes Question Paper

Proteins And Enzymes

Course:Bachelor Of Science In Microbiology

Institution: University Of Nairobi question papers

Exam Year:2013

UNIVERSITY OF NAIROBI
SECOND SEMESTER EXAMINATIONS 2008/2009
SECOND YEAR EXAMINATIONS FOR THE DEGREE OF BACHELOR OF SCIENCE
SBL 204: PROTEINS AND ENZYMES
DATE: JUNE 18, 2008 TIME: 9.00 AM – 12.00 AM
INSTRUCTIONS
Answer all questions from section A and ANY two from section B.
SECTION A
Short answer questions 30 marks total.
1. Differentiate between homotrophic and heterotrophic regulation of enzymes.
2. What are the characteristic features of iso-enzymes?
3. With examples briefly describe the function of Pyridoxal Phosphate (vitamin B6).
4. Describe the role of transferases. Give examples of their specific reactions.
5. What do you understand feedback regulation mechanism as?
6. Briefly describe the physiological functions of insulin during metabolism.
7. What are restriction enzymes? Describe their function and significance.
8. Describe briefly the structure and functions of lipoproteins.
9. What is the role of collagen in structural support?
10. Briefly describe the importance of protein export and secretion.
SECTION B
20 MARKS EACH
1. Describe the nature , mechanism and specificity of enzyme substrate interactions and the effects of inhibitors, Ph and temperature influencing enzyme activity.
2. Write an essay on the functional diversity, synthesis and structural organization of proteins.
3. Describe the structure and physiological effects of Anterior Pituitary Peptide Hormones.
4. Write an essay on Microbial toxins and toxic proteins and enzymes.

Proteins And Enzymes Question Paper

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