Describe and name three stages of cellular respiration that aerobic organisms use to obtain energy from glucose.

Explanation

The name and the three stages of cellular respiration.
(a) Glycolysis: (Glucose splitting)
Glycolysis is the break down of one molecule of Glucose (6 Carbon) into two molecules of Pyruvic acid (3 Carbon). It takes place in cytoplasm of the cell.
(b) Kreb.s cycle: This cycle occurs in mitochondria matrix. At the end of Glycolysis, 2. molecules of pyruvic acid enter into mitochondria. The oxidation of pyruvic acid into `CO_2` and `H_2O,` takes place through this cycle. It is also called as Tricarboxylic Acid Cycle. (TCA)
(c) Electron transport chain: It is a system of Electron Transport Chain (ETC) located on the inner membrane of the mitochondria. `NADH_2` and FADH, molecules formed during Glycolysis and Krebs cycle are oxidised to` NAD^+` and `FAD^+` to release the energy via electrons. The electrons, as they move through the system, release energy which is trapped by ADP to synthesize ATP. This is called Oxidative Phosphorylation. During this process, oxygen which is the acceptor of electrons get reduced to water.