Saturation occurs when
A) molecules are moved by the use of vesicles.
B) the energy required to move molecules results from a high-energy bond.
C) a group of carrier proteins is operating at its maximum rate.
D) a preference of a carrier protein for a substance is demonstrated based on the differing affinities of the carrier for the substrates.
E) a carrier molecule has the ability to transport only one molecule or a group of closely related molecules.

Question

Quizplus · Accepted Answer

Saturation occurs when a group of carrier proteins is operating at its maximum rate, meaning that all of the available carriers are already busy transporting substrates and cannot take on any more. This results in a plateau in the rate of transport, regardless of how much more substrate is added.

Saturation Occurs When