Question

The number of times a person breathes in a minute is known as
This question has multiple correct options.
A) Respiration rate
B) Breathing rate
C) Combustion rate
D) None of the above

Answer 1

Hint:Breathing is defined as a process by which the air moves in and out of the lungs for exchange of gas in the internal environment of the body. During breathing, carbon dioxide is released out of the body and oxygen is taken in.

Complete answer:
Breathing is humans is also called respiration which involves the breathing organs called lungs. Let us analyze the options to find out what number of times a person breathes is called.

Option A: Respiration rate is defined as the rate at which breathing occurs. This means breaths per minute. It is controlled by the respiratory centre.Therefore, this is the correct option.

Option B: The breathing rate is also termed as respiration rate which means the number of times a person breathes in a minute.Therefore, this is the correct option.

Option C: Combustion rate is also called burning rate. It is a measure of linear combustion rate which is expressed as length over time. Burn rate is affected by the temperature and the pressure.Therefore, this is the incorrect option.

Option D: Since one of the above mentioned options is correct, this is the incorrect option.

Thus, the correct answer is option (A) Respiration rate and (B) Breathing rate.

Note:
i) The normal respiratory rate of an adult who is at rest is 12-18 breaths per minute.
ii) Abnormal respiratory rates are observed during hypopnea, apnea and dyspnea.