9 Questions
Which molecule is pyruvate converted into before entering the citric acid cycle?
Acetyl CoA
Why is pyruvate processed aerobically?
Because oxygen is readily available
What inhibits the activity of the pyruvate dehydrogenase complex?
High concentrations of NADH and acetyl CoA
What is the initial product of the condensation reaction in the citric acid cycle?
Citrate
How many times does citrate release CO2 in the citric acid cycle?
Twice
What is the final product of the citric acid cycle?
Oxaloacetate
How many GTP molecules are produced in the citric acid cycle per glucose molecule?
2
How many NADH molecules are produced in the citric acid cycle per glucose molecule?
6
How many FADH2 molecules are produced in the citric acid cycle per glucose molecule?
2
Study Notes
Pyruvate Conversion and Citric Acid Cycle
- Pyruvate is converted into Acetyl-CoA before entering the citric acid cycle.
- Pyruvate is processed aerobically to generate more ATP.
- The pyruvate dehydrogenase complex is inhibited by ATP, NADH, and Acetyl-CoA.
Citric Acid Cycle
- The initial product of the condensation reaction in the citric acid cycle is Citrate.
- Citrate releases CO2 two times in the citric acid cycle.
- The final product of the citric acid cycle is Oxaloacetate.
- The citric acid cycle produces 2 GTP molecules per glucose molecule.
- The citric acid cycle produces 6 NADH molecules per glucose molecule.
- The citric acid cycle produces 2 FADH2 molecules per glucose molecule.
Test your knowledge of the citric acid cycle with this quiz! Explore the key concepts such as pyruvate processing, regulation by acetyl CoA and NADH, and the energy needs of the cell.
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