Active and passive transports across cell membrane differ in

Passive transport is non-selective

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Passive transport is along the concentration gradient while active transport is due to metabolic energy

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Active transport is more rapid

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Passive transport is confined to anions while active transport in confined to cations.

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Solution

The correct option is A Passive transport is along the concentration gradient while active transport is due to metabolic energy
Active transport is selective for a particular ion and it allows only those ions to pass through it.
example.sodium /potassium channel,calcium channel.
Passive transport is non-selective it occurs along the concentration gradient so this kind of channel allows to transport of many types of ions across the membrane. No, particularity is there for ions transport.

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Similar questions

Assertion (A): Active transport is uphill transport.

Reason (R): Active transport uses energy to pump molecules against the concentration gradient.

Consider the following statements and choose the correct answer.

I. Carrier proteins are needed by both facilitated diffusion and active transport and are sensitive to inhibitors that react with the protein.

II. Different types of proteins present in the membrane play a major role in both active as well as passive transport.

III. The carrier proteins needed by facilitated and active transport are specific.

IV. There is no need of energy to pump molecule against a concentration gradient in active transport.

V. Transport rate reaches the saturation point when all the active proteins are used.

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