ATP is Expended in Which of the Following Processes

Question

ATP is expended in which of the following processes?
A) facilitated diffusion
B) diffusion
C) group translocation
D) active transport
E) both active transport and group translocation

Accepted Answer

ATP is expended in both active transport and group translocation. Active transport requires energy to move substances against their concentration gradient, and group translocation involves chemically modifying substances as they are transported into a cell, which also requires energy.