Question

Q.1. (a) Study the diagram and answer the following questions:
1. Identify the gases labelled P and Q.
Name the parts numbered 1 -4.
3. Name the process involved in gaseous
exchange in the alveolus.
4. What happens to gas P as it enters the
blood capillary?
5. What does "Blood-X and Blood-Y
represent?
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Answer 1

Answer:

where is diagram ........