ENDOCRINE ORGANS AND RESPIRATORY SYSTEM
RESPIRATORY SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Gaseous exchange happens because of ____
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Osmosis
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Respiration
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Diffusion
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Semi-permeable membranes
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Explanation:
Detailed explanation-1: -Gas exchange during respiration occurs primarily through diffusion. Diffusion is a process in which transport is driven by a concentration gradient. Gas molecules move from a region of high concentration to a region of low concentration.
Detailed explanation-2: -Gas exchange allows the body to replenish the oxygen and eliminate the carbon dioxide.
Detailed explanation-3: -Gas exchange by diffusion depends on the large surface area provided by the hundreds of millions of alveoli in the lungs. It also depends on a steep concentration gradient for oxygen and carbon dioxide.
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