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Neuronal Resting Membrane Potential

A cell membra...

Question

A cell membrane is more permeable to potassium ions than sodium ions.

A

False

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B

True

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Solution

The correct option is B True

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Q. If a part of an axonal membrane becomes more permeable to

{Na}^{+}

ions, the membrane becomes .

Q. Permeability of the axolemma to potassium ions is higher than its permeability to sodium because

Q. The sodium- potassium requires energy to move sodium and potassium ions across the cell membrane. Which of these describes the process used by the sodium-potassium pump?

Q. Sodium-potassium pump across the resting membrane transports ____

N a

ions outside and ____

K

ions into the cell.

Q. Read the given statements and select the correct ones.
(i) Autonomic neural system transmits impulses from the CNS to the voluntary organs and striated muscles of the body.
(ii) Unmyelinated nerve fibres do not have Schwann cells which from the myelin sheath.
(iii) Axonal membrane of a neuron while not conducting any impulse is comparatively more permeable to potassium ions (K+) than to sodium ions (Na+).
(iv) A synapse is formed by the membranes of a presynaptic neuron and a post synaptic neuron.

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Neuronal Resting Membrane Potential

Standard XII Biology

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