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2 marksMatter and Cellular Organization

CSEC Integrated Science · May/June 2014 · Paper 2 · Question 3(b)(iii)

A vendor sprinkles water on wilting lettuce to make it firm.

Explain how this process kept the lettuce firm.

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Other parts of this question

  1. 3(a)(i)State which cell represents a plant cell.[1 mark]
  2. 3(a)(ii)Give TWO reasons for your choice in (a)(i).[2 marks]
  3. 3(a)(iii)Name the cell structure responsible for storing genetic information.[1 mark]
  4. 3(a)(iv)Name the type of human cell that transports oxygen around the body.[1 mark]
  5. 3(b)(i)Distinguish between 'diffusion' and 'osmosis'.[1 mark]
  6. 3(b)(ii)Identify the process that caused the wilting lettuce to become firm after being sprinkled with water.[1 mark]
  7. 3(b)(iv)Suggest a suitable method, other than sprinkling, that a consumer could use to keep lettuce firm.[1 mark]
  8. 3(c)Complete Table 3 showing the effects of muscle damage on the structure and function of the heart and stomach, and overall body effects.[5 marks]

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