The Specificity of the Potassium Channel for K⁺ Over Na⁺

question 43

Multiple Choice

The specificity of the potassium channel for K⁺ over Na⁺ is mainly the result of the:

• A) differential interaction with the selectivity filter protein.
• B) hydrophobicity of the channel.
• C) phospholipid composition of the channel.
• D) presence of carbohydrates in the channel.
• E) presence of cholesterol in the channel.

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Definitions:

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