(A) The sodium-potassium pump is a membrane protein that maintains the resting membrane potential of a neuron.It functions via active transport,which

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Active transport of $3 Na^+$ ions out of the cell and $2 K^+$ ions into the cell.

(A) The sodium-potassium pump is a membrane protein that maintains the resting membrane potential of a neuron.It functions via active transport,which requires energy in the form of $ATP$.For every cycle of the pump,$3 Na^+$ ions are transported out of the cell,and $2 K^+$ ions are transported into the cell against their respective concentration gradients.Therefore,option $A$ is the correct description.

Class 11 Biology Neural Control and Coordination Generation and conduction of Nerve Impulse

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Select the correct option for the sodium-potassium pump.

A
Active transport of $3 Na^+$ ions out of the cell and $2 K^+$ ions into the cell.
B
Active transport of $3 Na^+$ ions into the cell and $2 K^+$ ions out of the cell.
C
Passive transport of $3 Na^+$ ions out of the cell and $2 K^+$ ions into the cell.
D
Passive transport of $3 Na^+$ ions into the cell and $2 K^+$ ions out of the cell.

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Class 11 Questions

Class 11

Biology Questions

Chapter

Neural Control and Coordination

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Generation and conduction of Nerve Impulse

The mineral necessary for nervous conduction is

Medium

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Which of the following statements is/are correct?
$(a)$ The electrical potential difference across the resting plasma membrane is called the resting potential.
$(b)$ $Na^+$ ions are responsible for the generation of an action potential.
$(c)$ $A$ nerve impulse is an action potential.

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Maintenance of the ionic gradients across the resting membrane is done by the

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The rate of rise of action potential and its amplitude are determined by the concentration of

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Give scientific reasons:
$(1)$ In an excited nerve fibre region,a positive charge is created inside the plasma membrane.
$(2)$ In some animals,the conduction of nerve impulses is saltatory.

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Select the correct option for the sodium-potassium pump.

Similar Questions

The mineral necessary for nervous conduction is

Which of the following statements is/are correct?$(a)$ The electrical potential difference across the resting plasma membrane is called the resting potential.$(b)$ $Na^+$ ions are responsible for the generation of an action potential.$(c)$ $A$ nerve impulse is an action potential.

Maintenance of the ionic gradients across the resting membrane is done by the

The rate of rise of action potential and its amplitude are determined by the concentration of

Give scientific reasons:$(1)$ In an excited nerve fibre region,a positive charge is created inside the plasma membrane.$(2)$ In some animals,the conduction of nerve impulses is saltatory.

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Which of the following statements is/are correct?
$(a)$ The electrical potential difference across the resting plasma membrane is called the resting potential.
$(b)$ $Na^+$ ions are responsible for the generation of an action potential.
$(c)$ $A$ nerve impulse is an action potential.

Give scientific reasons:
$(1)$ In an excited nerve fibre region,a positive charge is created inside the plasma membrane.
$(2)$ In some animals,the conduction of nerve impulses is saltatory.