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tino4ka555 [31]
3 years ago
5

When a nerve cell is stimulated, the cell membrane becomes ______ permeable to _______?

Biology
2 answers:
mel-nik [20]3 years ago
7 0
Hey You!

I believe these are the answers:

Blank 1 = More.

Blank 2 =Sodium.

(Quite sure these are correct).
Sveta_85 [38]3 years ago
6 0

Answer:

When a nerve cell is stimulated, the cell membrane becomes MORE permeable to Na+.

Explanation:

When the action potential is fired, opening of Na+ ion channels in membrane makes it more permeable to the Na+ ions. The Na+ ions enter the axon and makes the inside of the membrane more positive. This is called as depolarization. Depolarization of axon is followed by depolarization during which K+ ion channels are opening to allow movement of K+ ion outside the axon and to make the inner side of axon membrane negative again.

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