CSEC Human and Social Biology · May/June 2016 · Paper 2 · Question 2(a)
State the meaning of the terms diffusion and osmosis.
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Practise this questionOther parts of this question
- 2(b)(i)Suggest TWO differences between the movement of molecules illustrated in Figure 1 and Figure 2.[2 marks]
- 2(b)(ii)Identify whether osmosis is taking place in Figure 1 or Figure 2.[1 mark]
- 2(b)(iii)State what would happen to the water level in the beaker in Figure 2 after one hour, and explain why.[2 marks]
- 2(c)(i)State TWO organs in the human body, other than the small intestine, in which diffusion occurs.[2 marks]
- 2(c)(ii)Describe and explain the structure and function of the villus in the small intestine.[4 marks]
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