EMBRYOLOGY
RESPIRATORY SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Diffusion is ____
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Movement of gas from an area of high concentration to high
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Movement of gas from an area of high concentration to low
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Movement of gas from an area of low concentration to high
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Movement of gas from an area of low concentration to low
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Explanation:
Detailed explanation-1: -Diffusion is defined as the net movement of molecules from an area of greater concentration to an area of lesser concentration. The molecules in a gas, a liquid or a solid are in constant motion due to their kinetic energy. Molecules are in constant movement and collide with each other.
Detailed explanation-2: -Diffusion in liquids and gases This is what is meant by the term concentration gradient-since molecules move from an area of high, to an area of low concentration, they are said to move down a concentration gradient.
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