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Today we're going to solve the current multiple choice questions.
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First one is, which statement about the ionic permeability of nerve cell membrane is true? in resting nerve cells, the membrane is relatively highly permeable to calcium? no.
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In resting cell, the membrane is relatively highly permeable to sodium? no, absolutely not.
00:29
In resting nerve cells, the membrane is permeable to all of the membrane.
00:32
But nonsense.
00:35
However, in resting nerve cells, the membrane is relatively highly permeable to potassium, this statement is correct to in.
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The negative charge within the cells is created by the cell membrane being more permeable to potassium ion movements than sodium ion movements in neurons.
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In neurons, potassium ions are maintained at higher concentration within the cell, while sodium ions are maintained higher concentration outside the cell.
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This is helpful in maintaining dressing membrane potential.
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The permeability of ions is constant all over the time.
01:08
No, it changes with the change in the potential...