Quelpr
4 marksRespiration

CSEC Biology · May/June 2019 · Paper 2 · Question 3(c)

Explain how any TWO features of the human lung make it an efficient respiratory surface.

The mark scheme is shown once you've answered.

Practise this question

Other parts of this question

  1. 3(a)Label, on the diagram, the FOUR structures that are directly involved in breathing.[4 marks]
  2. 3(b)State how any THREE of the structures labelled in (a) function in breathing during inhalation.[4 marks]
  3. 3(d)Breathing rate can be affected by several factors. Explain how exercise and smoking may affect a person's breathing rate.[4 marks]

More practice: the rest of this paper · more Respiration questions · all CSEC Biology past papers