3.2.1

Outline metabolism, anabolism, aerobic catabolism, and anaerobic catabolism.

                 

Metabolism: All the biochemical reactions that occur within an organism, including anabolic and catabolic reactions.

Anabolism: energy requiring reactions whereby small molecules are built up into larger ones.

Catabolism: chemical reactions that break down complex organic compounds into simpler ones, with net release of energy.

• Anaerobic- no O₂ (glycolysis + lactic acid & alcoholic fermentation)
• Aerobic- O2 required (pyruvate oxidation, Krebs cycle, ETC)