CAPE Biology Unit 2 · 2011 · Paper 2 · Question 5(a)(i)
Explain why haemoglobin functions as an efficient carrier of oxygen in blood.
The mark scheme is shown once you've answered.
Practise this questionOther parts of this question
- 5(a)(ii)Using haemoglobin as an example, and with the aid of a diagram, describe an oxygen dissociation curve.[4 marks]
- 5(b)(i)Briefly explain the term 'translocation' as applied to plants.[2 marks]
- 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.[5 marks]
More practice: the rest of this paper · more The Circulatory System of Mammals questions · all CAPE Biology Unit 2 past papers