Which of the following statements are true about respiration?(i) during inhalation, ribs move inwards and diaphragm is raised.(ii) the gaseous exchange takes place in the alveoli.(iii) haemoglobin has greater affinity for carbon dioxide than oxygen.(iv) alveoli increase surface area for the exchange of gases(a) (i) and (iv)  (b) (ii) and (iii)  (c) (i) and (iii)  (d) (ii) and (iv)

(d) (ii) and (iv)

Alveoli are the tiny air sacs connected to tiny blood capillaries at the end of the small bronchioles, where the exchange of gases takes place.

They also help to increase the surface area in order to ease the process of the exchange of gases.

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Updated on: 24-Mar-2023

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