devarshi-dt-logo

Question:

What is the correct order of the stages of cellular respiration?

Electron transport chain - Kreb's cycle- glycolysis

Krebs cycle electron - transport-chain glycolysis

Glycolysis - Krebs cycle - electron transport chain

Glycolysis - electron transport chain - Kreb's cycle

Solution:

Cellular respiration is the set of metabolic reactions and processes that take place in the cells of organisms to convert biochemical energy from nutrients into adenosine triphosphate (ATP), and then release waste products. Aerobic respiration, or cell respiration in the presence of oxygen, uses the end product of glycolysis (pyruvate) in the TCA cycle to produce much more energy currency in the form of ATP. After TCA cycle molecules pass through the electron transport chain which produces the necessary proton gradient for ATP synthesis. Hence the correct option is C.