题目
题目

BIOL 251 Module 6 Problem Set

多项选择题

Which of the following describes a resting membrane? Select all that apply.

选项
A.The membrane is more permeable to potassium than sodium.
B.The membrane is more permeable to sodium than potassium.
C.Interior charge is negative compared to the outside of the neuron.
D.Exterior charge is negative compared to the inside of the neuron.
E.Cytosol contains more potassium ions than sodium.
F.Cytosol contains more sodium ions than potassium.
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标准答案
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思路分析
To tackle the question, I’ll lay out the core concepts about a resting membrane potential and then evaluate each statement. Option 1: 'The membrane is more permeable to potassium than sodium.' At rest, the neuronal membrane is indeed more permeable to K+ than to Na+, largely due to potassium leak channels. This differential permeability is a key contributor to the negative resting membrane potential. This statement is correct because it captures the relative permeability that helps ......Login to view full explanation

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