Active transport is uniquely characterized by:

Question

Quizplus · Accepted Answer

Active transport involves the movement of a molecule or ion against its concentration gradient, from an area of lower concentration to an area of higher concentration. This requires an input of energy to overcome the thermodynamic barrier created by the concentration gradient. In active transport, the energy input is tightly coupled to the transport process, with the energy being used to drive a thermodynamically unfavorable reaction. This is typically achieved through the hydrolysis of ATP, although other sources of energy, such as light or ion gradients, may also be used in some cases. Therefore, option D is the best choice.

Active Transport Is Uniquely Characterized By