Suppose that the concentration of Cat outside the cell is 10 and inside the cell is 0.01 mmol/liter. The Nernst equation at 20°C is: Ean - 58 millivolts/2. (lon]out TlonJin You set the membrane voltage at +87 millivolts using a voltage clamp, and measure membrane current. If Cat is the only ion crossing the membrane, you would expect to see: O current O positive charges flowing into the cell O positive charges flowing out of the cell O the membrane hyperpolarizes (becomes more negative)

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Question 5
Suppose that the concentration of Cat outside the cell is 10 and inside the
cell is 0.01 mmol/liter. The Nernst equation at 20°C is:
Een = 58 millivolts / logie (om
[lon]in
You set the membrane voltage at +87 millivolts using a voltage clamp, and
measure membrane current. If Ca++ is the only ion crossing the membrane,
you would expect to see:
0 current
O positive charges flowing into the cell
O positive charges flowing out of the cell
O the membrane hyperpolarizes (becomes more negative)
Transcribed Image Text:D Question 5 Suppose that the concentration of Cat outside the cell is 10 and inside the cell is 0.01 mmol/liter. The Nernst equation at 20°C is: Een = 58 millivolts / logie (om [lon]in You set the membrane voltage at +87 millivolts using a voltage clamp, and measure membrane current. If Ca++ is the only ion crossing the membrane, you would expect to see: 0 current O positive charges flowing into the cell O positive charges flowing out of the cell O the membrane hyperpolarizes (becomes more negative)
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