HUMAN PHYSIOLOGY
BREATHING AND RESPIRATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Identify the basic requirement of a gas exchange system.
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Moist environment
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Large surface area
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Concentration gradient
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Consistent partial pressure
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Explanation:
Detailed explanation-1: -Solution : Large surface area for easy gas exchange. <br> Fine and delicate surface for easy exchange of oxygen and carbon dioxide. <br> Moist-air sacs are moist with mucus so that gas can dissolve before diffusion. <br> Rich in blood capillaries so that large volume of gases can be exchanged.
Detailed explanation-2: -Remember, the blood capillaries must be in contact with the respiratory surface for gas exchange to take place. Therefore, the greater the surface area, the more gas exchange can occur.
Detailed explanation-3: -Trachea has a large surface area for gaseous exchange.
There is 1 question to complete.