Which term describes release energy when a complex molecule is broken down into a simpler form?

Which term describes release energy when a complex molecule is broken down into a simpler form?

• A. Anabolic
• B. Catabolic
• C. Metabolism
• D. Respiration

Answer: (B)

Catabolic processes describe the release of energy when complex molecules are broken down into simpler ones. This contrasts with anabolic processes, which use energy to build larger molecules. The term metabolism refers to all chemical reactions in the body, not specifically the energy-releasing breakdown. Respiration is a particular pathway that releases energy from glucose, but the general term for energy released by breaking down molecules is catabolism. In cells, the energy released during breakdown is captured to form ATP, fueling many cellular activities.

Catabolic processes describe the release of energy when complex molecules are broken down into simpler ones. This contrasts with anabolic processes, which use energy to build larger molecules. The term metabolism refers to all chemical reactions in the body, not specifically the energy-releasing breakdown. Respiration is a particular pathway that releases energy from glucose, but the general term for energy released by breaking down molecules is catabolism. In cells, the energy released during breakdown is captured to form ATP, fueling many cellular activities.