Question

What effect does rapid exhalation of CO2 during exercise have on the concentration of H2CO3 in the blood?


The concentration of H2CO3 decreases.


The concentration of H2CO3 increases.


The concentration of H2CO3 remains the same.

Answer 1

If there is a constant loss of $CO_{2}~(carbon~dioxide)$ the concentration of $H_{2} CO_{3}~(carbonic~acid)$ will be affected and decrease since $CO_{2}$ is a main component of $H_{2}CO_{3}$.

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BioTeacher101

Answer 2

Answer:

The concentration of H2CO3 decreases.

Explanation:

Respiration may be defined as the process of exchange of gases between the alveoli, tissues and external environment. The oxygen is inhaled and carbon dioxide is exhaled out during respiration process.

Rapid exhalation of CO2 means the amount of oxygen is more than the carbon dioxide. The concentration of H2CO3 will decrease as less amount of carbon dioxide is available in the body. The concentration of carbon dioxide is directly proportional to the concentration of H2CO3. Hence, the concentration of H2CO3 will decrease.

Thus, the correct answer is option (1).