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.
