Breathing and Exchange of Gases Question 26

26. When $CO_2$ concentration in blood increases, breathing becomes

(a) shallower and slow

(b) there is no effect on breathing

(c) slow and deep

(d) faster and deeper

Show Answer

Answer : d

Hints & Solution

(d) The breathing becomes faster and deeper in order to oxygenate the blood at a fast rate. Shallow and slow breathing occurs during rest.



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