(i) Name the substance which is oxidised in body during respiration.
(ii) Why lungs are divided into very small sac-like structures?
Answers
Answered by
1
Explanation:
glucose is oxidised during respiration
Answered by
4
Answer:
Glucose is oxidized during respiration to provide energy.
Lungs are divided into very small sac like structures in order to increase the surface area and easily transport oxygen to the blood vessels which surrounds the air sacs and air sacs also have a thick film of oxygen which help to absorb oxygen quickly
Explanation:
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