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Karnataka Board PUCPUC Science Class 11

Compare the following: Resting potential and action potential - Biology

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Question

Compare the following:

Resting potential and action potential

Distinguish Between

Solution

  Resting potential Action potential
1. The difference in electric potential across the recycled charge at rest is shown. The exciton or outlook orchestra, is depolarized whenever stimulation is observed in any part of the axon.
2. A potential of -70 mV is generated in the plasma membrane, which is called the static phase potential. At that place, the potential difference reduces to 30 mV, this is called active potential.
3. It is the potential difference across the nerve fibre when there is no conduction of nerve impulses. It is the potential difference across nerve fibre when there is conduction of nerve impulses.
4. The resting potential describes what actually happens to a neuron when it is at rest. An action potential occurs when a neuron sends a message down an axon that travels away from the neuron cell body.
5. The membrane is more permeable to K+ ions than to Na+ ions The membrane is more permeable to Na+ ions than to K+ ions.
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Chapter 21: Neural Control and Coordination - Exercises [Page 328]

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NCERT Biology [English] Class 11
Chapter 21 Neural Control and Coordination
Exercises | Q 2.2 | Page 328

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