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5 marksTransport in the Phloem

CAPE Biology Unit 2 · 2011 · Paper 2 · Question 5(b)(ii)

Outline the principle of mass flow and discuss, using TWO examples, experimental evidence in support of mass flow as a possible mechanism of translocation.

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Other parts of this question

  1. 5(a)(i)Explain why haemoglobin functions as an efficient carrier of oxygen in blood.[4 marks]
  2. 5(a)(ii)Using haemoglobin as an example, and with the aid of a diagram, describe an oxygen dissociation curve.[4 marks]
  3. 5(b)(i)Briefly explain the term 'translocation' as applied to plants.[2 marks]

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