MEDIUM
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IMPORTANT
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Hyperventilation leads to stoppage of breathing for a brief period. This occurs due to

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Important Questions on Breathing and Exchange of Gases

EASY
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The allergic disease in which patient experiences difficulty in breathing, causing wheezing due to inflammation of bronchi and bronchioles is
MEDIUM
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The bluish or purplish discolouration of the skin or mucous membranes due to low oxygen saturation is called
MEDIUM
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IMPORTANT
Which of the following events are seen when a person moves to high altitude?
(i) Breathing rate increases.
(ii) Binding capacity of haemoglobin with oxygen decreases.
(iii) The pO2 in alveolar air is reduced, so the diffusion of oxygen from the alveolar air into blood also reduces.
(iv) RBC production increases in the body to compensate for low oxygen availability.