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#action potential MCQ

3 public questions tagged with this topic.

Action potential

Action potential follows all-or-none law because:

Answer: C) Threshold once crossed produces fixed amplitude. For Action potential, once you lock onto the key mechanism or definition, Threshold once crossed produces fixed amplitude is the clear fit. If you restate the concept in your own words, cause and effect line up with Threshold once crossed produces fixed amplitude — that is the mechanism or reason the stem is pointing to. So Threshold once crossed produces fixed amplitude is the clean, accurate selection. If a similar stem appears later, start from the same core fact and you will land on the same kind of answer. In class notes, highlight this same phrase next to the related diagram so the wording and the picture reinforce each other.

Ref: Animal physiology is Unit 7 of the CSIR NET Life Science Syllabus, covering core body systems. It accounts for roughly 10% of the total marks in Sections B and C.

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Action potential

Voltage-gated channels responsible for action potential are primarily located in:

The correct answer is C: Axons. In Action potential, this idea is central because it matches how the body actually works in everyday teaching examples. Put simply, the functional job described in the stem is exactly what Axons does in Action potential. That is why Axons is the option that holds up when you check it against basic physiology. When you revise, say the answer out loud with one short reason attached; that sticks better than rote lists. Remember that physiology questions reward precise language: name the process, the location, and the outcome, then match that to the option text.

Ref: Animal physiology is Unit 7 of the CSIR NET Life Science Syllabus, covering core body systems. It accounts for roughly 10% of the total marks in Sections B and C.

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Action potential

Overshoot phase of action potential occurs because membrane potential moves toward equilibrium potential of:

Answer: B) Na+. For Action potential, once you lock onto the key mechanism or definition, Na+ is the clear fit. If you restate the concept in your own words, cause and effect line up with Na+ — that is the mechanism or reason the stem is pointing to. So Na+ is the clean, accurate selection. If a similar stem appears later, start from the same core fact and you will land on the same kind of answer. In class notes, highlight this same phrase next to the related diagram so the wording and the picture reinforce each other. When you practise, cover the choices first, write Na+ from memory, then reveal the letter — that habit builds real recall for Action potential.

Ref: Animal physiology is Unit 7 of the CSIR NET Life Science Syllabus, covering core body systems. It accounts for roughly 10% of the total marks in Sections B and C.

View Details