The blood level of which gas is most important in controlling human respiration rate?
A)nitric acid
B)nitrogen
C)oxygen
D)carbon dioxide
E)carbon monoxide

Question

Quizplus · Accepted Answer

Carbon dioxide is the gas that most directly affects the respiratory rate. When carbon dioxide levels rise in the blood, it triggers an increase in breathing to eliminate the excess carbon dioxide and bring oxygen in.

The Blood Level of Which Gas Is Most Important in Controlling