AP BIOLOGY

Detailed explanation-1: -Photosynthesis, which builds sugars out of smaller molecules, is a “building up, ” or anabolic, pathway. In contrast, cellular respiration breaks sugar down into smaller molecules and is a “breaking down, ” or catabolic, pathway.

Detailed explanation-2: -Catabolic pathways involve the degradation (or breakdown) of complex molecules into simpler ones. Molecular energy stored in the bonds of complex molecules is released in catabolic pathways and harvested in such a way that it can be used to produce ATP.

Detailed explanation-3: -Cellular respiration is a catabolic process during which glucose is broken down to release usable energy for a cell. As in all catabolic processes, cellular respiration releases energy which can then be harnessed and used by other reactions in the cell.

Detailed explanation-4: -Catabolism refers to the processes that involve a series of degradative chemical reactions that break down complex molecules into smaller units.

Detailed explanation-5: -catabolism, the sequences of enzyme-catalyzed reactions by which relatively large molecules in living cells are broken down, or degraded. Part of the chemical energy released during catabolic processes is conserved in the form of energy-rich compounds (e.g., adenosine triphosphate [ATP]).