Adenosine triphosphate (ATP) is used indirectly for which of the following processes?

Question

Quizplus · Accepted Answer

[II D 2]. All of the processes listed are examples of primary active transport (and therefore use adenosine triphosphate [ATP] directly), except for absorption of glucose by intestinal epithelial cells, which occurs by secondary active transport (i.e., cotransport). Secondary active transport uses the $\mathrm{Na}^{+}$gradient as an energy source and, therefore, uses ATP indirectly (to maintain the $\mathrm{Na}^{+}$gradient).

Adenosine Triphosphate (ATP) Is Used Indirectly for Which of the Following