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2 marksThe Respiratory System

CSEC Human and Social Biology · January 2008 · Paper 2 · Question 8(b)(ii)

Describe how oxygen diffuses from the alveoli into the blood.

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Other parts of this question

  1. 8(a)(i)State TWO functions of bones in the human body.[2 marks]
  2. 8(a)(ii)State the function of cartilage in humans.[1 mark]
  3. 8(b)(i)Select the process (diffusion, osmosis, or active transport) by which oxygen moves into the lungs from the air.[1 mark]
  4. 8(b)(iii)Explain the process by which green plants produce oxygen.[4 marks]

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