Cellular Respiration Part A

Cellular Respiration

The process of converting chemical energy stored in glucose into ATP to power cellular reactions.

ATP

Adenosine triphosphate, a molecule used to provide energy for cellular processes due to its ability to release energy quickly in a single step.

Aerobic Cellular Respiration

Cellular respiration that requires oxygen, producing 30 or 32 ATP molecules per glucose molecule.

Anaerobic Fermentation

Cellular respiration that does not require oxygen, producing 2 ATP molecules per glucose molecule and harmful by-products.

Glycolysis

The first stage of cellular respiration, occurring in the cytosol, breaking down glucose into pyruvate and producing 2 ATP molecules.

Krebs Cycle

Also known as the Citric Acid Cycle, takes place in the mitochondrial matrix, breaking down acetyl CoA to produce high-energy electrons and 2 ATP.

Electron Transport Chain (ETC)

Takes place on the inner membrane of mitochondria, where the majority of ATP is produced by converting NADH and FADH2 back to NAD+ and FAD.

Enzymes and Coenzymes in Cellular Respiration

Enzymes, with the help of coenzymes, catalyze reactions in cellular respiration to extract energy from glucose at a fast rate.