Question

The Term Respiration Is Derived from Latin Word “Respire”. It Means:
A) To Inhale
B) To Exhale
C) To Breathe
D) to Respire

Answer 1

Hint: Respiration is the process in which the food is broken down by oxidation into simpler substances. The oxygen/air is inhaled though the nose and the carbon dioxide is exhaled from the body. The process of respiration leads to the production of energy.

Complete answer:
Respiration is the important process in the physiological process which takes place in our body. In this process, the air or oxygen is taken in or inhaled from the nose and the carbon dioxide is exhaled by the nose. The respiration is derived from the Latin word respire which means to breathe.

There are two types of respiration- Cellular respiration which takes place in the mitochondria and External respiration which is called breathing. Breathing can be defined as moving in and out of the air from the lungs which brings about gaseous exchange with the blood where oxygen is taken in and carbon dioxide is flushed out.

The gaseous exchange occurs in the alveoli of the lungs. This oxygen taken is used up for the cellular respiration which takes place inside the mitochondria of the cell. The oxygen breaks down the food into carbon dioxide, water vapour and energy in the form of ATP. The circulatory system of the body is responsible for transporting the oxygen to different parts of the body.

Thus the correct answer is option ‘C’.

Note: In case of anaerobic respiration, the oxygen is not required. The food is broken down by the help of enzymes into lactic acid or ethanol. It also releases energy but in lesser amount. The anaerobic respiration takes place in the muscles during strenuous activity. The accumulation of lactic acid caused muscle fatigue.