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Biology Essay Questions And Answers Form 4 Chapter 2


(ii)N [1m]  ________________________________________________________________________ e)Explain the role of L in maintaining cell turgidity [2m]  ________________________________________________________________________  ________________________________________________________________________ f)Name a cell which is rich in structure N and give your reason. [2m]  ________________________________________________________________________  ________________________________________________________________________ 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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