NEET Biology · Medium

Neural Control and Coordination: All or none MCQ

Solve this quality-checked NEET multiple-choice question, then review the correct answer and explanation.

Timer-based practiceDetailed answer reviewMobile-friendly flow
All or noneMediumQuestion 9734

Question

The all-or-none rule means that an action potential is:

  1. A
    Produced fully once threshold is crossed
    Correct
  2. B
    Produced partially every time
  3. C
    Independent of ion channels
  4. D
    Impossible in myelinated neurons

Correct answer

Produced fully once threshold is crossed

Explanation

Action potentials are not graded in magnitude once threshold is achieved.