a. (1 pt) How many channels does your patch likely contain? b. (2 pt) Given the

Question

a. (1 pt) How many channels does your patch likely contain?



b. (2 pt) Given the recordings above, what is the reversal potential for the channel? Explain your reasoning in 1 sentence. a. (1 pt) How many channels does your patch likely contain?



b. (2 pt) Given the recordings above, what is the reversal potential for the channel? Explain your reasoning in 1 sentence. eep up-to-date with security updates, fixes, and improvements, choose Checok for Updates. uon 4 13 ptsy You are patcn-ciamping a cei. wnue noiaing tne neuron at airrerent Ch membrane potentials, you observed the current recordings below. -10 mV m -50 mV a. (1 pt) How many channels does your patch likely contain? (2 pt) Given the recordings above, what is the reversal potential for the channel? Explain your reasoning in 1 sentence. b. Focus

Explanation / Answer

Answer 4a) there are total 5 channels that patch is likely to contain. Because talking about -50mV, it contains 2 ion channels, one is closed at the top, and another is open at the bottom. So, total it contains 5 channels.

Answer 4b) -10 mV shows the reversible potential.

Because,

In a single-ion system, reversal potential is synonymous with equilibrium potential; their numerical values are identical. The two terms refer to different aspects of the difference in membrane potential. Equilibrium refers to the fact that the net ion flux at a particular voltage is zero. That is, the outward and inward rates of ion movement are the same; the ion flux is in equilibrium. Reversal refers to the fact that a change of membrane potential on either side of the equilibrium potential reverses the overall direction of ion flux.

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