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NEETZoology-Neural Control and Coordination

NEET Zoology Nerve Impulse MCQ Question

Type: MCQ-conceptual-Medium-Class 11

Read the following statements and answer as directed afterwards.

  1. Sodium-potassium pump helps in maintaining the resting membrane potential across the resting membrane or axolemma
  2. Sodium-potassium pump works against the concentration gradient.
  3. Sodium-potassium pump transports 3 sodium ions outwards for 2 potassium ions into the cell. How many of the above statements are correct.
A

1

B

2

C

3

D

4

Correct Answer

Option C

Detailed Explanation

All three statements about the sodium-potassium pump are correct; it maintains resting potential, works against the gradient, and exchanges 3 Na⁺ for 2 K⁺.

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