Question

Which of the following statements is true concerning catabolic pathways?

A. Catabolic pathways build complex molecules from simpler ones.
B. Catabolic pathways release energy through the breakdown of complex molecules.
C. Catabolic pathways are involved in the synthesis of macromolecules.
D. Catabolic pathways require an input of energy to proceed.

Answer 1

Catabolic pathways release energy through the breakdown of complex molecules.

Step-by-step explanation:

In catabolic pathways, complex molecules are broken down into simpler ones, and energy is released in the process. This distinguishes catabolic pathways from anabolic pathways, which require energy to synthesize larger molecules. Therefore, the correct statement concerning catabolic pathways is option B: Catabolic pathways release energy through the breakdown of complex molecules.