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Question


Which of the following is correct regarding diffusion?


Options:
A .   Diffusion takes place only in gases.
B .   Diffusion takes place only outside the cells.
C .   Osmosis is a special case of diffusion.
D .   Diffusion takes place only in liquids.
Answer: Option C
:
C

Diffusion is the process of spontaneous movement of a substance from a region of high concentration to a region where its concentration is low.
Movement of substances across small distances in a cell takes place through diffusion. Osmosis is a special case of diffusion
through a selectively permeable membrane.



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