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4 marksTransport Systems

CSEC Biology · May/June 2013 · Paper 2 · Question 1(d)(ii)

Blood tests are done for the group of students. The amount of haemoglobin in the blood of three students is found to be below normal.

Explain how this will affect the ability of these three students to perform well in sports.

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Other parts of this question

  1. 1(a)In the space below, construct a table using the data presented in Figure 1.[3 marks]
  2. 1(b)Suggest TWO causes of variation among members of the same species.[2 marks]
  3. 1(c)Explain how the type of variation shown in Table 1 differs from the type of variation represented by Figure 1.[4 marks]
  4. 1(d)(i)Name TWO substances that are transported by blood.[2 marks]
  5. 1(e)(i)Draw and annotate a diagram to show how the following materials could be set up to investigate the rate at which water moves through the xylem vessels under…[4 marks]
  6. 1(e)(ii)Write a suitable hypothesis for this investigation.[2 marks]
  7. 1(f)Relate the structure of xylem vessels to their role in the transport of water through plant stems.[4 marks]

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