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Q2. Compare the following:

(b) Resting potential and action potential

Answers (1)

Resting Potential	Action Potential
1. It is the potential difference (difference in electric charge) across the membrane when the neuron is at the resting phase.	1. It is the potential difference (difference in the electric charge) across the membrane when the neuron is stimulated or excited.
2. The outer side of the neuron is positively charged and the interior of the neuron is negatively charged.	2. The outer side of the neuron is negatively charged and the interior of the neuron is positively charged.
3. The plasma membrane of the neuron is more permeable to K⁺ ions.	3. The plasma membrane of the neuron is more permeable to Na⁺ ions.
4. The sodium-potassium-ATPase pump is active and sends Na⁺ ions outside the neuron to maintain the resting potential.	4. The sodium-potassium-ATPase pump functions in a reverse manner and sends Na⁺ ions into the neuron.

Posted by

Priyanka Kumari

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