A 10 Percent Increase in the Level of Carbon Dioxide

Question

A 10 percent increase in the level of carbon dioxide in the blood will
A) decrease the rate of breathing.
B) double the respiratory rate.
C) decrease pulmonary ventilation.
D) decrease the alveolar ventilation rate.
E) decrease the vital capacity.

Accepted Answer

An increase in the level of carbon dioxide in the blood stimulates chemoreceptors, leading to an increase in the respiratory rate to expel the excess CO2.