Question: Which choice best characterizes K+ leak channels? a. transmembrane protein channels that are alwa…

which choice best characterizes K+ leak channels?

a. transmembrane protein channels that are always open
to allow K+ to cross the membrane without the additional input of
energy
b. chemically gated K+ channels that open and close according to
the binding of other molecules
c. common transmembrane channels that are always open for any ion
to move through in the presence of K+
d. transmembrane channels that use energy to allow the movement of
K+ across the membrane