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In the resting state of the neural membr...

In the resting state of the neural membrane, diffusion due to concentration gradients, if allowed, would drive

A

`Ca^(2+)` into the cell

B

`K^+` and `Na^+` out of the cell

C

`Na^+` into the cell

D

`Na^+` out of the cell

Text Solution

Verified by Experts

The correct Answer is:
D
The concentration gradients across the resting membrane are maintained by the active transport of ions by the sodium-potassium pump which transports `3 Na^+` outward for `2 K^+` into cell.
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NCERT FINGERTIPS-NEURAL CONTROL AND COORDINATION-Neural Control And Coordination
  1. Which of the following options illustrates the distribution of Na^+ an...

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  2. Sodium-potassium pump transports

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  3. In the resting state of the neural membrane, diffusion due to concentr...

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  4. Which of the following statements are correct regarding Na^+ - K^+ pum...

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  5. The electrical potential diference between outside and inside of a ner...

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  6. A typical value of resting membrane potential is

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  7. Complete the following paragraph by selecting the option that gives co...

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  8. During depolarisation the outer surface of the membrane becomes

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  9. Depolarisation of axolemma during nerve conduction takes place because

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  10. During the propagation of a nerve impulse, the action potential result...

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  11. During the transmission of nerve impulse through a nerve fibre, the po...

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  12. Saltatory conduction of impulse occurs in

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  13. Read the given statements and select the correct ones. (i)Autonomic ...

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  14. The junction between the axon of one neuron and the dendrite of the ne...

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  15. Which of the following statements is/are incorrect about the electrica...

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  16. Nerve fibres transmit the nerve message by means.

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  17. A list of events occurring in the transmission of nerve impulse across...

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  18. The given diagram shows axon terminal.Select the option that correctly...

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  19. The given diagram shows axon terminal and synapse. Here A,B,C,D and E ...

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  20. Which one of the following does not act as a neurotransmitter ?

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