Hbb 2150: Introduction To Biochemistry Question Paper
Hbb 2150: Introduction To Biochemistry
Course:Bachelor Of Science In Biochemistry
Institution: Jomo Kenyatta University Of Agriculture And Technology question papers
Exam Year:2013
JOMO KENYATTA UNIVERSITY
OF
AGRICULTURE AND TECHNOLOGY
UNIVERSITY EXAMINATIONS 2013/2014
YEAR II SEMESTER I EXAMINATION FOR THE DEGREE OF BACHELOR OF SCIENCE IN BIOTECHNOLOGY
HBB 2150: INTRODUCTION TO BIOCHEMISTRY
DATE: AUGUST 2013 TIME: 2 HOURS
INSTRUCTIONS: ANSWER QUESTION ONE AND ANY OTHER TWO QUESTIONS
QUESTION ONE
(a) Describe the general structure of amino acids. (4 marks)
(b) State the main properties of a “standard” alpha-helix. (4 marks)
(c) What is the difference between nucleoside and nucleotide?
(4 marks)
(d) Draw the structure of maltose and sucrose. Justify if they are
reducing sugars. (4 marks)
(e) Define, giving structural examples on anomer and epimer.
(4 marks)
(f) Briefly, describe the fate of pyruvate under anaerobic conditions.
(4 marks)
(g) Explain how hormones are classified. (4 marks)
(h) State the difference between substrate level and oxidative level
phosphorylation. (2 marks)
QUESTION TWO
Describe how electrons are passed through protein complexes to oxygen in the mitochondria to generate energy. (20 marks)
QUESTION THREE
Explain the organizational hierarchy of the endocrine system and the second messenger concept in hormone action. (20 marks)
QUESTION FOUR
Describe
i) Classification of lipids. (10 marks)
ii) Levels of protein structures. (10 marks)
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