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1 markGenetic Concepts

CSEC Biology · January 2021 · Paper 2 · Question 2(c)(i)

State if there is any difference between the function of plant chromosomes and the function of animal chromosomes.

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  1. 2(a)(i)Name the structures labelled A, B, C and D on Figure 2.[4 marks]
  2. 2(a)(ii)Suggest ONE way in which photosynthesis would be affected if ALL of the air spaces in the leaf of the flowering plant were filled with cells.[1 mark]
  3. 2(b)List THREE ways in which the leaf of a plant is adapted for photosynthesis.[3 marks]
  4. 2(c)(ii)State ONE reason for your answer in (c)(i).[1 mark]
  5. 2(d)(i)Describe the region of the line of the graph labelled A in Figure 3.[1 mark]
  6. 2(d)(ii)Use the principles of photosynthesis to suggest ONE reason for the shape of the graph in the region A.[1 mark]
  7. 2(d)(iii)Describe the region of the line of the graph labelled A-B in Figure 3.[1 mark]
  8. 2(e)Despite the increase in the global concentrations of atmospheric carbon dioxide, there is no corresponding increase in the rate of photosynthesis in flowering…[2 marks]

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