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Bio-Membranes and Vacuoles

Semipermeable...

Question

Semipermeable membrane means

A

things can pass through

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B

the concentration levels are different

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C

it is permanent

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D

things are stuck

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Solution

The correct option is A
things can pass through

A semipermeable membrane is a type of biological or synthetic membrane that will allow certain molecules or ions to pass through it by diffusion. Occasionally by more specialized processes of facilitated diffusion, passive transport or active transport.

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Q. Question 6
Following are a few definitions of osmosis. Read carefully and select the correct definition:

(a) Movement of water molecules from a region of higher concentration to a region of lower concentration through a semipermeable membrane
(b) Movement of solvent molecules from its higher concentration to lower concentration
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(d) Movement of solute molecules from lower concentration to higher concentration of solution through a semipermeable membrane

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