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2 marksGrowth

CSEC Biology · January 2016 · Paper 2 · Question 1(c)

Complete the following definition for 'growth' by writing the correct words from the list in brackets. (transient, temporary, mass, permanent, organs) Growth may be defined as a _______________ increase in the _______________ and volume of an organism when food is absorbed and converted to living matter.

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Other parts of this question

  1. 1(a)On the grid provided below, plot the data obtained for both plants on the same graph, using appropriate scales and legends.[5 marks]
  2. 1(b)(i)Describe the pattern of growth obtained for EACH plant.[2 marks]
  3. 1(b)(ii)Explain the differences observed in the growth of the plants under these two conditions (light and dark).[4 marks]
  4. 1(d)Suggest why the measurements of length taken for the plants are incomplete, UNLIKE the measurements taken for a baby.[1 mark]
  5. 1(e)Suggest TWO ways in which this experiment could be refined to obtain more accurate data for measuring growth.[2 marks]
  6. 1(f)Describe ONE way in which the pattern of growth in plants differs from the pattern of growth in animals.[2 marks]
  7. 1(g)(i)Describe an experiment to demonstrate the response of plants exposed to light on one side only.[2 marks]
  8. 1(g)(ii)How does this response to light benefit plants in a forest?[1 mark]
  9. 1(g)(iii)Explain how and why the response of invertebrates (like earthworms) to light differs from that shown by plants.[3 marks]
  10. 1(h)State ONE role that light plays in human growth and development.[1 mark]

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