The total number of CO2 molecules released from one molecule of glucose during the link reaction and the Krebs cycle combined is:
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Correct answer: 6
One glucose yields two pyruvates. The link reaction releases 2 CO2 (1 per pyruvate) and the Krebs cycle releases 4 CO2 (2 per pyruvate), totaling 6 CO2 molecules, matching the 6 carbons in glucose.
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More Krebs Cycle (TCA): Steps and Significance questions
- The Krebs cycle is also referred to as the 'Amphibolic Pathway' because it is involved in:
- Before entering the Krebs cycle, pyruvate undergoes oxidative decarboxylation to form which 2-carbon compound?
- Which enzyme complex is responsible for the conversion of Pyruvate to Acetyl CoA?
- The first step of the Krebs cycle involves the condensation of Acetyl CoA with which 4-carbon compound?
- How many molecules of CO2 are released during one complete turn of the Krebs cycle?
- At how many points in the TCA cycle is NAD+ reduced to NADH + H+?