NEET PG DENTAL EXAM

Detailed explanation-1: -What is Respiration? Respiration is the life-sustaining process in which gases are exchanged between the body and the outside atmosphere. Specifically, oxygen moves from the outside air into the body; and water vapor, carbon dioxide, and other waste gases move from inside the body into the outside air.

Detailed explanation-2: -Every living cell of our body carries out the energy-releasing process of respiration, where glucose (a simple sugar) is slowly “burnt” (oxidised) to give off carbon dioxide (excreted through the lungs) and water.

Detailed explanation-3: -Carbon dioxide is the waste product of the body that needs to be expelled out through exhalation. It is saturated with water vapours, that’s why water vapours also come out with it. So the correct answer is ‘Exhaled air’.