Which of the following are characteristics of a carrier protein?
I Saturation
II Specific and selective
III Regulated by hormones
IV Respond to inhibitors

Two

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One

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None

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All

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Solution

The correct option is D All
Carrier proteins being highly selective, they are liable to saturate, respond to inhibitors and are influenced by hormonal regulation.

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Similar questions

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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