Aerobic Metabolism
Metabolism is defined as the sum of chemical reactions taking place in a live organism to maintain life. Aerobic means oxygen dependent and aerobic metabolism refers to an energy-generating system under the presence of oxygen as opposed to anaerobic, i.e., oxygen independent metabolism. Aerobic metabolism uses oxygen as the final electron acceptor in the electron transport chain and combines with hydrogen to form water [1]. In essence, the vast majority of adenosine triphosphate (ATP) synthesis takes place via aerobic breakdown of energy substrates through the coupling of respiratory chain and oxidative phosphorylation. Aerobic metabolism includes in terms of energy sources carbohydrates and lipids and to a less extent proteins.
•This occurs in the mitochondria.
•2830 KJ or 686 K cal of energy is liberated during the oxidation of one molecule of glucose.
Aerobic Metabolism
1.Citric acid cycle
2. Electron Transport Chain
3.Oxidative phosphorylation
4.Shuttles Metabolism
•2830 KJ or 686 K cal of energy is liberated during the oxidation of one molecule of glucose.
Aerobic Metabolism
1.Citric acid cycle
2. Electron Transport Chain
3.Oxidative phosphorylation
4.Shuttles Metabolism
Electron Transport Chain
An electron transport chain (ETC) is a series of compounds that transfer electrons from electron donors to electron acceptors via redox reactions, and couples this electron transfer with the transfer of protons (H+ions) across a membrane. This creates an electrochemical proton gradient that drives ATP synthesis, or the generation of chemical energy in the form of adenosine triphosphate (ATP). The final acceptor of electrons in the electron transport chain is molecular oxygen.