AP BIOLOGY

Detailed explanation-1: -Catabolic pathways are those that generate energy by breaking down larger molecules. Both types of pathways are required for maintaining the cell’s energy balance.

Detailed explanation-2: -Catabolic pathways involve the degradation of complex molecules into simpler ones, releasing the chemical energy stored in the bonds of those molecules. Some catabolic pathways can capture that energy to produce ATP, the molecule used to power all cellular processes.

Detailed explanation-3: -Catabolic pathways involve the breakdown of nutrient molecules (Food: A, B, C) into usable forms (building blocks). In this process, energy is either stored in energy molecules for later use, or released as heat.

Detailed explanation-4: -Catabolic (exergonic) pathways, especially cellular respiration, provide the energy for the endergonic regeneration of ATP. Plants also use light energy to produce ATP. The chemical potential energy temporarily stored in ATP drives most cellular work.