SCIENCE
RESPIRATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Carbon dioxide
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Water
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Oxygen
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Pyruvic acid
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Detailed explanation-1: -In one turn of the Krebs cycle, 3 molecules of NADH are produced. For complete oxidation of a glucose molecule, Krebs cycle yields 4 CO2, 6NADH, 2 FADH2 and 2 ATPs.
Detailed explanation-2: -Now the molecule is ready to accept another acetyl-CoA molecule to begin another turn of the cycle. All told, the Krebs cycle forms (per two molecules of pyruvic acid) two ATP molecules, ten NADH molecules, and two FADH2 molecules.
Detailed explanation-3: -Krebs cycle produces the following: Two molecules of carbon dioxide are given off. One molecule of ATP is formed.
Detailed explanation-4: -The cycle starts with a three-carbon molecule, that is, pyruvic acid, which is further divided into acetyl coenzyme A which then combines further with oxaloacetic acid to generate citric acid. The end product of the Krebs cycle is an organic acid found in citrus fruits like lemons, oranges, etc. known as citric acid.
Detailed explanation-5: -So, correct option is ‘ 3 NADH, 1 FADH2, 1 ATP ‘ .