Question

define diffusion and osmosis ? biology question

Answer 1

Diffusion-The movement of a molecule through a region of higher concentration to lower concentration is known as diffusion,It is not limited.
Osmosis-The movement of a molecule through a region of higher conc. to lower conc. with the help of a semi permeable membrane is known as osmosis,It is limited.
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Answer 2

The movement of molecules of a substance from 1 region to another region of their higher concentration to a region of their lower concentration is called diffusion.
The diffusion of water molecules through a semi permeable membrane from a region where water is more concentrated to a region where it is less concentrated is called osmosis.