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Q.

Read the following statements pertaining to Na+-K+ pumps in neuron.

a. Transport 3Na+  into extracellular fluid

b. Transport 2K+  into axoplasm

C. Mobility of either Na+ or K+ takes place along with the mobility of proteins of axoplasm to extracellular fluid

d. No need of ATP for Na+ and K+ transport

In the above, how many statements are true?

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a

One

b

Two

c

Three

d

Four

answer is B.

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Detailed Solution

Na+-K+ pumps in neuron transport 3Na into extracellular fluid for every 2K transported into axoplasm. ATP is required for the transport.

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