Which choice best characterizes k+ leakage channels? view available hint(s)
a. chemically gated k+ channels that open and close according to the binding of other molecules
b. transmembrane channels that use energy to allow the movement of k+ across the membrane
c. transmembrane protein channels that are always open to allow k+ to cross the membrane without the additional input of energy
d. common transmembrane channels that are always open for any ion to move through in the presence of k+

C. Trans-membrane protein channels that are always open to allow K+ to cross the membrane without the additional input of energy

Explanation:

As we know that K+ leakage channels indicate the Potassium leakage channel. The best characterizes about K+ leakage channels is that there is a Trans-membrane protein channel which is always open to allow K+ to cross the membrane without the additional input of energy.

Actually when a cell dies its membrane potential gets more positive and finally reaches zero .

The key point is that the cells spend energy to maintain the intra-cellular ionic concentrations constant.

The membrane permeability of K+ is much  higher than the membrane permeability of Na+.

Therefore, the correct choice is option (C).

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step-by-step explanation: