In a neuron, what creates the electrochemical gradient favoring t...

Question

In a neuron, what creates the electrochemical gradient favoring the outflow of K+ when the cell is at rest?
a. Na+/K+-ATPase
b. voltage-gated K+ channels
c. voltage-gated Na+ channels
d. ligand-gated Na+/K+ channels

Accepted Answer

Hello everyone and welcome to today's video. So which of the following is not true for the sodium potash in a. T. P. A. S. Pump. Remember that? We're looking for the incorrect statement. And one or answer choices well, in order to solve this problem, I want you to think about the function of this pump and the main function is that it's going to be pumping two potassium ions into the cell or the near in and it's going to be pumping at the same time three sodium ions outside. And the main reason why it's going to do this. It is going to be to restore main brain potential or the resting membrane potential. So why why does this need to occur? Remember that when an action potential occurs, the neuron becomes the polarized. So it becomes very positive because many of these sodium ions are rushed inside of the neuron. So after this all happens and these neuron and this action potential has passed. The neuron needs to be polarized. It needs to go back to its resting membrane potential. And this is where the sodium potash in 80 ph pump comes in. It is going to start pumping out these sodium ions and replacing them by less of the potash in ions. By doing this. The inside of the neuron will become more negative until it reaches again. It's resting membrane potential because of this. It is going to play a very major role in the maintenance of these resting membrane potential. So answer choice D is going to be the incorrect answer choice that we're looking for because this minor is that is just not true. These sodium potash in A TPS pumps have a major role in maintaining and restoring the resting potential of a membrane that is the end of the video, and I really hope this helps you.

In a neuron, what creates the electrochemical gradient favoring the outflow of K+ when the cell is at rest? a. Na+/K+-ATPase b. voltage-gated K+ channels c. voltage-gated Na+ channels d. ligand-gated Na+/K+ channels

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