All of the following statements are correct, except -----------.

Question

All of the following statements are correct, except -----------.

a) The concentration of calcium in the cytosol of resting cells is very much higher than the concentration of extracellular calcium. This is due to the active transport of Ca2+

b) The Na/K ATPase pump is an enzyme that phosphorylates itself.

c) During active transport, the affinity of any given binding site for the molecule to be transported changes as the site goes from facing one side of the membrane to facing the other side.

Answer 1

b) The Na/K ATPase pump is an enzyme that phosphorylates itself.

The Na/K ATPase pump does not phosphorylate itself. The pump uses energy in the form of ATP to transport sodium ions (Na+) out of the cell and potassium ions (K+) into the cell, creating a gradient of charged ions across the cell membrane. This ion gradient is what drives the active transport of other ions and molecules across the membrane.

The other statements are correct.