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BOWEN UNIVERSITY
FACULTY OF SCIENCE AND SCIENCE EDUCATION
DEPARTMENT OF CHEMISTRY AND BIOCHEMISTRY
B.Sc. DEGREE SECOND SEMESTER EXAMINATION 2007/2008
BCH 406
COURSE CODE:..........................
14th May, 2008
DATE:...............................................
INSTRUCTION:
QUESTION 1
(a)
(b)
(c)
Biochemistry of Parasites and Virus
COURSE TITLE:...........................................
2½ Hours
TIME ALLOWED:.........................................
ANSWER ANY FOUR QUESTIONS
START TO ANSWER EACH QUESTION ON A NEW PAGE
EACH QUESTION CARRIES 25 MARKS
25 MARKS
What are interferons? Give a detailed description of their biochemical activities.
QUESTION 2
25 MARKS
Why are viruses classified as non-living? Give a comparative description of viruses, virions and
viroids.
QUESTION 3
25 MARKS
Write on each of the following:
(a)
oncogenes in retroviruses
(b)
T4 bacteriophage
QUESTION 4
25 MARKS
Write an essay on defence mechanism in parasitism.
QUESTION 5
25 MARKS
Present a review of the mechanism of drug action against parasitism.
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