Linked Questions

3 votes
0 answers
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Movement of few ion during changes in membrane potential

My question is very simple: why is it sufficient for a very few ions (such as 1 in 100000 K+) to move across the membrane to generate a remarkable variation in the membrane potential (like a change of ...
Ginevra B's user avatar
0 votes
0 answers
60 views

Na+ / K+ ATPase: How does it restore resting membrane potential? [duplicate]

Could not find any sources talking about this (in a clear manner). If the Na+ / K+ ATPase pumps 3 Na+ out for every 2 K+ it pumps in, thus making the cell more negative, why is the Na+ / K+ ATPase ...
Ally's user avatar
  • 329
0 votes
0 answers
32 views

Doubt related to nerve impulse transmission

Naturally, the extracellular fluid has more sodium ions and the axoplasm has more potassium ions. Since there are more potassium leakage channels than sodium leakage channels on axoplasm, it is more ...
Pratham Hullamballi's user avatar
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0 answers
20 views

Why does increasing concentration of extracellular sodium have no effect on electrical gradient of potassium? [duplicate]

I learnt that the permeability of an ion across the membrane contributes to the membrane potential as much as(or even more than) its concentration and electrical gradients. And so far I've made peace ...
Chemo-Mike's user avatar

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