91影视

The catabolic process in which oxygen is used to burn the glucose to release energy by releasing carbon dioxide is called respiration. The respiratory system consists of two parts such as respiratory tract and respiratory organs. Lungs are respiratory organs that involve in the exchange of gases.

When an individual holds their breath, the intake of oxygen reduces.

Therefore, oxygen does not rise when someone controls the breath.

Thus, the given option is false.

The oxygen level drops when someone holds their breath. However, the rising of carbon dioxide in the blood causes the urge to breathe.

Therefore, the falling of oxygen level is the second reason for the urge to breathe.

Thus, the given option is false.

The holding of breath reduces the intake of oxygen. The cells are continuously producing carbon dioxide in the body. Thus, carbon dioxide level increases due to the absence of the exhalation process.

Therefore, carbon dioxide accumulation causes the urge to breathe.

Thus, the given option is true.

Carbon dioxide does not fall when an individual holds their breath. Instead, the level of carbon dioxide increases.

Therefore, the carbon dioxide level does not decrease in the given scenario.

Thus, the given option is false.