Answer: The correct answer is- 1) Glycolysis, 2) Kreb cycle, 3) Electron transport chain.
Cellular respiration is a process of oxidation of food molecule ( like glucose) so as to form carbon dioxide, water, and large amount of energy in the form of ATP ( adenosine triphosphate). It can be of two types that is aerobic ( that occurs in eukaryotes) and anaerobic ( in prokaryotes) cellular respiration.
The three phases of aerobic cellular respiration ( occurs in the presence of oxygen) are -
1) Glycolysis ( takes place in cytoplasm)- Glucose is broken down into 2 molecules of pyruvate with the release of net 2 ATP, 2NADH.
2) Kreb cycle ( takes place in mitochondrial matrix)- More energy is driven when pyruvate is first conveted into acetyle CoA ( acetyl coenzyme A) that is further oxidised to release 1ATP, 3NADH, and FADH2.
3) Electron transport chain ( in the inner mitochondrial membrane)- It is the final stage of aerobic respiration in which maximum amount ( upto 36 ATP) of energy is harvested.
