A 10 percent increase in the level of carbon dioxide in the blood will select one:

a. decrease pulmonary ventilation.

b. decrease the alveolar ventilation rate.

c. decrease the vital capacity.

d. increase the rate of breathing.

e. decrease the rate of breathing.

Question

Jagger Horn

Biology

1 November, 02:31

A 10 percent increase in the level of carbon dioxide in the blood will select one:

a. decrease pulmonary ventilation.

b. decrease the alveolar ventilation rate.

c. decrease the vital capacity.

d. increase the rate of breathing.

e. decrease the rate of breathing.

+2

Answers (1)

Know the Answer?

Kenny Mathews · Answer 1

The correct answer is d. increase the rate of breathing.

Peripheral chemoreceptors (the carotid and aortic bodies) can sense hypercapnia (high CO2) and then they send a signal to the breathing centre. Breathing centre is in medulla oblongata which regulates breathing movements. When CO2 reaches a certain level, a signal is sent to trigger an inhalation and the rate of breathing is increased.

A 10 percent increase in the level of carbon dioxide in the blood will select one:a. decrease pulmonary ventilation.b. decrease the alveolar ventilation rate.c. decrease the vital capacity.d. increase the rate of breathing.e. decrease the rate of breathing.

A 10 percent increase in the level of carbon dioxide in the blood will select one:

a. decrease pulmonary ventilation.

b. decrease the alveolar ventilation rate.

c. decrease the vital capacity.

d. increase the rate of breathing.

e. decrease the rate of breathing.