Question

Q5). An catabolic reaction usually...

A) is degradative, regardless of energy change.
B) requires energy.
C) yields energy.
D) increases molecular order.

Answer 1

Catabolic reactions break down large organic molecules into smaller molecules, releasing energy.

Step-by-step explanation:

Catabolic reactions break down large organic molecules into smaller molecules, releasing the energy contained in the chemical bonds. These energy releases are not 100 percent efficient. Approximately 40 percent of energy yielded from catabolic reactions is directly transferred to adenosine triphosphate (ATP), the energy currency of cells. The remaining 60 percent of the energy released is given off as heat.