Biology Chapter 2 Topical Exercise
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Transcript of Biology Chapter 2 Topical Exercise
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ALAN WANG TUITION CENTRE
TOPICAL TEST
Biology : Chapter 2 Cell Structure and Cell Organisation
Name : Mark :
Class :
Centre :
Instructions: Answer all the questions
1) Diagram below shows the structure of a cell.
a) On the diagram, name the structure labelled K, L, M, N. [4m]
bi)Where could the cell be found? [1m]
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bii)Explain your answer in b(i) [2m]
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c)State one characteristic of structure K [1m]
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d)State the function of
(i)M [1m]
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(ii)N [1m]
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e)Explain the role of L in maintaining cell turgidity [2m]
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f)Name a cell which is rich in structure N and give your reason. [2m]
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2a)What are unicellular organisms and how do they differ from multicelluar organisms in
terms of cell organisation? [2m]
b) Amoeba sp. is a unicelluar organism which can be found in freshwater ponds rich in
decaying organic matter.
Explain how freshwater Amoeba sp adapts to living freshwater environment. [4m]
c)Explain how Amoeba sp. reproduces in response to different conditions in
environment.
[4m]
d)Unicellular organisms do not require a transport system.
Using Amoeba sp as example, give an evaluation of the above statement based on the
physical features of a unicellular organism with respect to the following processes:
-Locomotion
-Nutrition
-Respiration
[10m]
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