Question

Which of the following processes can you control?

• A. Breathing rate
• B. Heart rate
• C. Respiration rate
• D. Growth rate

Answer 1

The correct option is A

Breathing rate

We can control our breathing rate. However, we cannot consciously control our heart rate, the respiration rate or the growth rate of the body.

Heart muscles are involuntary and hence the beating of the heart cannot be controlled by us. Respiration is the breakdown of food molecules to release energy required by the body and this depends on how much energy is required by the body. The growth rate of an organism depends on the growth hormone. So the rate of respiration or growth cannot be controlled by us.