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Synaptic Transmission

The nerve imp...

Question

The nerve impulse in nerve fibre is conducted when permeability increases mainly of

A

Chloride ions

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B

Sodium ions

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C

Calcium ions

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D

Potassium ions

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Solution

The correct option is B
Sodium ions

A signal transmitted along a nerve fibre. It consists of a wave of electrical depolarization that reverses the potential difference across the nerve cell membranes.

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Similar questions

Q. Assertion :In depolarisation process, there is a positive charge on the outer side of nerve fibres and a negative charge on its inner side Reason: During depolarisation, permeability of plasma membrane increases for sodium ions, so N

a^{+}

ions move to outer side of the membrane and

K^{+}

enter the nerve fibre

Q. Which set of ions are required during conduction of the nerve impulse?

Q. Assertion :In depolarisation process, there is a positive charge on the outer side of a nerve fibre and a negative charge on its inner side. Reason: During depolarisation, permeability of plasma membrane increases for sodium ions, so

N a^{+}

move to outer side of the membrane and

K^{+}

enter into the nerve fibre through it.

Q. What is the function of ion channels in conduction of nerve impulse?

Q. Ions needed for nerve conduction is

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