Distinguish between resting potential and action potential.

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Solution

Resting potential Action potential
1 It is the potential difference across the nerve fibre when there is no conduction of nerve impulse. It is the potential difference across nerve fibre when there is conduction of nerve impulse.
2 The membrane is more permeable to K $^{+}$ ions than to Na $^{+}$ ions. The membrane is more permeable to Na $^{+}$ ions than to K $^{+}$ ions
3 The membrane is negatively charged from inside and positively charged from outside. The value of resting potential is -70mV. The membrane is negatively charged outside and positively charged outside.

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At the membrane potential when voltage gated Na⁺ channels open, an action potential is sure to fire. This membrane potential is called _____.

- 70 mV

- 60 mV

N a^{+}

N a^{+}

K^{+}

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	Resting potential	Action potential
1	It is the potential difference across the nerve fibre when there is no conduction of nerve impulse.	It is the potential difference across nerve fibre when there is conduction of nerve impulse.
2	The membrane is more permeable to K $^{+}$ ions than to Na $^{+}$ ions.	The membrane is more permeable to Na $^{+}$ ions than to K $^{+}$ ions
3	The membrane is negatively charged from inside and positively charged from outside. The value of resting potential is -70mV.	The membrane is negatively charged outside and positively charged outside.