A) anaerobic respiration
B) Krebs cycle
C) glycolysis
D) None of the above
Correct Answer: B
Solution :
Respiration is defined as the process, in which organic substances are broken down to simpler products with release of energy, which is incorporated into special energy molecules and subsequently used for other metabolic processes. It is the process of intake of \[{{O}_{2}}\] and giving out of \[C{{O}_{2}}\] (aerobic respiration). The respiration, which requires \[{{O}_{2}}\] is called aerobic respiration. The amount of energy released is much more in aerobic respiration (includes glycolysis, Krebs cycle and terminal oxidation). In glycolysis, there is net gain of 2NADH and 2ATP molecules (total 8ATP). The net product of Krebs cycle is 8NADH, \[2FAD{{H}_{2}}\] and 2ATP (total 30 ATP molecules), ie, 686 kcal of energy. Anaerobic respiration is an enzyme mediated energy liberating step wise catabolic process with incomplete breakdown of organic substrate without using oxygen as an oxidant.
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