Chemistry NEET Full Syllabus Mock Test 180 Question New Syllabus Mock Test - 13 PCB Single Correct MCQ
Published on: August 13, 2026

When a neuron is not conducting any impulse, the axoplasm inside the axon has a low concentration of potassium ions , while the extracellular fluid outside the axon contains high concentrations of sodium ions ( ).
Choose the correct answer from the following:

A
The statement is true for axoplasm but false for extracellular fluid.
B
The statement is true for both axoplasm and extracellular fluid.
C
The statement is false for axoplasm but true for extracellular fluid.
D
The statement is false for both axoplasm and extracellular fluid.

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Text Solution

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The correct answer is:
C

In the axoplasm, potassium ions ( ) are present in high concentrations, not low, making the first part of the statement false for axoplasm. The extracellular fluid, however, has a high concentration of sodium ions , which makes the second part of the statement true.

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