Protein membrane receptors are activated

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When protein membrane receptors are activated, what usually happens?

The receptor changes conformation after binding with signal polypeptides.

The receptor preferentially binds with lipid or glycolipid signal molecules.

A change occurs on only one membrane surface: exterior or interior.

A change occurs in intracellular ion concentration.

The receptors open and close in response to protein signals.

Reference no: EM13894766

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