Question

1 match the following
1) Permeable [ ] a) allows the passage of
solvent and some selected solutes.
2) Impermeable [ ]b) allows the
passage of both
solute and solvent.
3) selectively permeable [ ]
c) allows the movement of solvent and prevents solute
d) semi permeable [ ] d) does not allow the passage of solute and solvent ​

Answer 1

Explanation:

There are certain membranes, which allow penetration of only solvent molecules but not the solute particles. Such membranes are known as semi-permeable. Examples of such membranes are cellophane, fish and animal bladders, egg membrane, plasma membrane, etc. The biological membranes are not perfectly semi-permeable. They allow to pass solute molecules only up to a certain extent and are, therefore, selective in nature. They are known as selectively or differentially permeable membranes. All living biological membranes are differentially permeable membranes, which allow some substances to pass through it more readily than others.

So, the correct answer is '(i) and (iii)'.

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