ANIMAL PHYSIOLOGY
HUMAN CIRCULATION
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
carbon dioxide and water vapour.
|
|
|
nitrogen and water vapour.
|
|
|
oxygen and carbon dioxide.
|
|
|
oxygen and nitrogen.
|
Detailed explanation-1: -In breathed in air, there is 0.04% of carbon dioxide and breadthed out air contains 4% carbon dioxide. Hence, the relative amount of oxygen is less and carbon dioxide is more. As per the question, Compared with the air she breathes out, the air she breathes in contains less CO2 and water vapour.
Detailed explanation-2: -Answer: The exhaled air contains more carbon dioxide because the carbon dioxide produced during respiration is removed out of the body as the exhaled air during the process of respiration.
Detailed explanation-3: -When we take a breath, we pull air into our lungs that contains mostly nitrogen and oxygen. When we exhale, we breathe out mostly carbon dioxide.
Detailed explanation-4: -When you inhale (breathe in), air enters your lungs, and oxygen from that air moves to your blood. At the same time, carbon dioxide, a waste gas, moves from your blood to the lungs and is exhaled (breathed out).
Detailed explanation-5: -What happens to the gases that the body can’t use? They are exhaled.