CELL RESPIRATION
AEROBIC RESPIRATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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glycolysis
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krebs cycle
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electron transport chain
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photosynthesis
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Detailed explanation-1: -The Krebs cycle uses a 2-carbon molecule (acetyl-CoA) derived from pyruvate and produces carbon dioxide.
Detailed explanation-2: -Krebs cycle produces the following: Two molecules of carbon dioxide are given off. One molecule of ATP is formed.
Detailed explanation-3: -Decarboxylation takes place twice in the TCA cycle forming two carbon dioxide molecules. Since two cycles are required thus, 2 CO2 molecules are released per cycle and in total 4 carbon dioxide molecules are released for one molecule of glucose in the TCA cycle.
Detailed explanation-4: -The Krebs cycle is the second stage of cellular respiration. During the Krebs cycle, energy stored in pyruvate is transferred to NADH and FADH2, and some ATP is produced.
Detailed explanation-5: -In the second reaction of the Krebs cycle, the isomerisation of citrate to isocitrate takes place. As an intermediate, cis-aconitate is formed. Therefore, it is a two-step reaction sequence.