Osmosis


Transport of Food And Minerals In Plants - I - Concepts
Class - 8th ICSE Subjects
 
 
Concept Explanation
 

Osmosis

Osmosis : Diffusion of water across a semipermeable membrane is called Osmosis. The movement of water in living beings depends on osmosis. The movement of water molecules across the cell membrane is affected by the amount of solute dissolved in it. Here also the water molecules are free to pass across the membrane in both directions. But the net movement of water molecules takes place from the dilute solution to the concentrated one.

Sample Questions
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Question : 1

When we place resins inside the water they swell up this occur due to _____________

Right Option : D
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Question : 2

Which of the following are correct :

(a) Diffusion of water across a semipermeable membrane is called Osmosis.

(b) Diffusion of gases in the surroundings is called Osmosis.

(c) In osmosis , the net movement of water molecules takes place from the dilute solution to the concentrated one.

Right Option : C
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Question : 3

The membrane required for the process of osmosis is _______________________

Right Option : C
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