Which of the following are false about the inward rectifier? OA The inward rectifier current is carried by potassium OB The inward rectifier carries inward current at potentials negative to the Nersnst potential for potassium under voltage clamp conditions. OC. The inward rectifier current obeys Ohm's law. OD. The inward rectifier is absent in the sino-atrial node. OE All of the above are true.

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A:

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