RESPIRATORY SYSTEM
ALVEOLI
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The exhaled air from our body consists mostly of ____ Check all boxes that apply
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carbon dioxide.
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nitrogen.
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oxygen.
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water vapour.
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Explanation:
Detailed explanation-1: -And when you breathe out (exhale), your lungs put carbon dioxide back into the air. However, the breath you exhale doesn’t only contain carbon dioxide. It also contains moisture from your mouth and lungs. This moisture is in the form of water vapor, the gas form of water.
Detailed explanation-2: -In turn, exhaled air contains: nitrogen – 78% oxygen – 17% carbon dioxide – 4% other gases – 1%.
Detailed explanation-3: -In fact, exhaled air is completely saturated with water-it contains the maximum amount of moisture and is therefore has a relative humidity of 100℅.
Detailed explanation-4: -Inhaled air contains 0.02-0.04% water vapour. Exhaled air contains 5.0 – 6.3% water vapour.
There is 1 question to complete.