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Posted By: Sanjana Member Level: Gold Posted Date: 11 Jun 2008
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2005 HUMAN BIOLOGY Question paper
SCHOOL OF BIOLOGY
HUMAN BIOLOGY
BL1004
DEGREE EXAMINATION
January 2005
Time available TWO hours
Answer EIGHT questions only from a choice of ten.
Answer the questions you select on the corresponding page. Do not use additional pages.
It is recommended that you spend 15 minutes on each question.
HUMAN BIOLOGY BL1004 January 2005
CLASS NUMBER ……………………
1. Describe three species of hominin. (10 marks)
Do not write over this page!
HUMAN BIOLOGY BL1004 January 2005
CLASS NUMBER ……………………
2. The human body may be thought of as an ecosystem where there are more
prokaryotic cells than there are eukaryotic cells present. What roles do these
prokaryotes have in maintaining the ecosystem in a stable state?
Do not write over this page!
HUMAN BIOLOGY BL1004 January 2005
CLASS NUMBER ……………………
3. Write notes on the cerebellum and its role in the control of movement.
Do not write over this page!
HUMAN BIOLOGY BL1004 January 2005
CLASS NUMBER ……………………
4. Give examples to illustrate how parasites can manipulate the behaviour of their hosts
to their own advantage.
Do not write over this page!
HUMAN BIOLOGY BL1004 January 2005
CLASS NUMBER ……………………
5. Discuss the use, mechanism of action and side effects of the following 3 drugs:
a) Aspirin
b) Fluoxetine (Prozac)
c) Lignocaine
Do not write over this page!
HUMAN BIOLOGY BL1004 January 2005
CLASS NUMBER ……………………
6. a) Answer the following true/false questions. According to the Allied Dunbar
National Fitness Survey:- (3 marks)
i) most people think they are fit enough T/F
ii) most people are aware of the amount of exercise needed for health T/F
iii) 80% of the population are able to sustain walking up a moderate slope at 3
mph T/F
b) Fill in the blanks. To benefit health:- (2 marks)
i) Morris believes that exercise that expends above _____ calories per minute is
needed.
ii) Paffenbarger believes that you need to expend more than ______ calories per
week from exercise.
c) Training destroys tissue whereas adaptations occur in the subsequent rest
period. List 3 benefits which accrue during this rest period. (3 marks)
i)
ii)
iii)
d) Define the following principles of training:- (2 marks)
i) progressive overload
ii) specificity
Do not write over this page!
HUMAN BIOLOGY BL1004 January 2005
CLASS NUMBER ……………………
7. How do insects provide ‘services’ to humans? Use TWO different and specific
examples of such a service to validate your answer.
Do not write over this page!
HUMAN BIOLOGY BL1004 January 2005
CLASS NUMBER ……………………
8. Write short notes on the homeostatic regulation of temperature.
Do not write over this page!
HUMAN BIOLOGY BL1004 January 2005
CLASS NUMBER ……………………
9. Why do commercial fisheries tend to overexploit their resources?
Do not write over this page!
HUMAN BIOLOGY BL1004 January 2005
CLASS NUMBER ……………………
Q10. Name the four basic tissue types.
1………………………………………………………………………
2……………………………………………………………………….
3……………………………………………………………………….
4……………………………………………………………………….
EPITHELIA
List 2 types of simple epithelia and state where you would find them.
5 ………………………………………………………
………………………………………………………………….
6…………………………………………………………
………………………………………………………………….
List two types of surface specialization in simple epithelia. What are the functions of these
specialisations?
7…………………………………………………………
………………………………………………………………….
8…………………………………………………………
………………………………………………………………….
9 Are simple epithelia permeable or impermeable?..............................................
List 3 types of stratified epithelia and state where you would find them.
10 …………………………………………………………
……………………………………………………………….
11…………………………………………………………
……………………………………………………………….
12 …………………………………………………………
……………………………………………………………….
13 Are stratified epithelia permeable or impermeable?....................................
14 Does mitosis occur…..
(a) on the surface of a stratified epithelium or
(b) close to its basement membrane? (circle your response)
15 What word is used to describe the loss of cells from the surface of a stratified
epithelium?
…………………………………………………………………………………………….
16 Why do epithelial cells have specialised cell junctions?
Do not write over this page!
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