Download BCH 403 - Redeemer`s University

REDEEMER'S UNIVERSITY
km 46/48
Lagos-Ibadan
Expressway, Redemption
City, Ogun State
COLLEGE OF NATURAL SCIENCES
DEPARTMENT OF CHEMICAL SCIENCES
B. Sc. BIOCHEMISTRY DEGREE
BCH 403: Biosynthesis of Macromolecules
UNITS: 2
FIRST SEMESTER EXAMINATION
2013/2014 SESSION
Instruction: Answer any THREE questions in all
Time Allowed: 2 hr
Ouestion 1
(a)
(bi)
(b ii)
(c i)
(ii)
Write a short note on polysaccharides?
[7 marks]
With a named example each and appropriate structure; describe the storage
polysaccharide in plants and animals?
[12 marks]
What are the major differences in the synthesis of a named storage polysaccharides in
plants and animals?
[3 marks]
What are dextrans?
[1 marks]
How does it differ from other storage polysaccharides?
[2 marks]
Question 2
(a)
(b i)
(b ii)
(c)
Describe the structure of polysaccharide present in the exoskeleton of arthropods?
[4 marks]
[4 marks]
What are mucopolysacharides?
[10 marks]
Differentiates between Hyaluronic acids and chondrointin
[7marks]
Briefly describe glycoproteins?
Question 3
Write an essay on the different matrix polysaccharide found in higher plants
[25 marks]
Question 4
(a)
(b)
(c)
(e)
What is the Significant of the cell wall found in bacteria?
[2 mark]
Distinguish between the Gram negative and Gram positive bacteria based on their outer
membrane system
[5 marks]
How do bacteria synthesize the peptidoglycan component of their cell wall? [15 marks]
Describe the general structure and composition of peptidoglycan
[3 marks]
Question 5
Write concise but detailed notes on the major steps in protein synthesis
e
[25 marks]