QuestionJuly 20, 2025

Why is the outside of a neuron positively charged? because chloride ions gather around the outside of the cell membrane because calcium ions gather around the outside of the cell membrane because sodium ions gather around the outside of the cell membrane because potassium ions gather around the inside of the cell membrane because sodium ions gather around the inside of the cell membrane

Why is the outside of a neuron positively charged? because chloride ions gather around the outside of the cell membrane because calcium ions gather around the outside of the cell membrane because sodium ions gather around the outside of the cell membrane because potassium ions gather around the inside of the cell membrane because sodium ions gather around the inside of the cell membrane
Why is the outside of a neuron positively charged? because chloride ions gather around the outside of the cell membrane because calcium ions gather around the outside of the cell membrane because sodium ions gather around the outside of the cell membrane because potassium ions gather around the inside of the cell membrane because sodium ions gather around the inside of the cell membrane

Solution
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Answer

because sodium ions gather around the outside of the cell membrane Explanation 1. Identify Ion Distribution Neurons maintain a resting membrane potential where the outside is positively charged compared to the inside. 2. Determine Key Ions Involved Sodium ions (Na⁺) are primarily responsible for the positive charge outside the neuron. 3. Analyze Ion Movement Sodium-potassium pumps actively transport Na⁺ out of the cell, contributing to the positive charge outside.

Explanation

1. Identify Ion Distribution<br /> Neurons maintain a resting membrane potential where the outside is positively charged compared to the inside.<br />2. Determine Key Ions Involved<br /> Sodium ions (Na⁺) are primarily responsible for the positive charge outside the neuron.<br />3. Analyze Ion Movement<br /> Sodium-potassium pumps actively transport Na⁺ out of the cell, contributing to the positive charge outside.
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