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Questions and Answers
What is the main product formed in the first reaction of the TCA cycle?
What is the main product formed in the first reaction of the TCA cycle?
- Citrate (correct)
- Isocitrate
- Oxaloacetate
- Acetyl CoA
Which enzyme is responsible for the isomerization of citrate to isocitrate?
Which enzyme is responsible for the isomerization of citrate to isocitrate?
- Aconitase (correct)
- Isocitrate dehydrogenase
- Pyruvate dehydrogenase
- Citrate synthase
During which reaction is the first NADH molecule produced in the TCA cycle?
During which reaction is the first NADH molecule produced in the TCA cycle?
- Oxidative decarboxylation of isocitrate (correct)
- Isomerization of citrate
- Formation of alpha-ketoglutarate
- Condensation of acetyl CoA
What is released during the oxidative decarboxylation of isocitrate in the TCA cycle?
What is released during the oxidative decarboxylation of isocitrate in the TCA cycle?
What substrate is required for the synthesis of citrate in the TCA cycle?
What substrate is required for the synthesis of citrate in the TCA cycle?
What is the net result regarding oxaloacetate during one turn of the TCA cycle?
What is the net result regarding oxaloacetate during one turn of the TCA cycle?
How many ATP molecules can be generated from the oxidation of one acetyl-CoA in the TCA cycle?
How many ATP molecules can be generated from the oxidation of one acetyl-CoA in the TCA cycle?
Which of the following is NOT an inhibitor of the TCA cycle?
Which of the following is NOT an inhibitor of the TCA cycle?
What is the approximate ATP yield from the oxidation of one NADH during the TCA cycle?
What is the approximate ATP yield from the oxidation of one NADH during the TCA cycle?
Which compounds act as activators in the regulation of the TCA cycle?
Which compounds act as activators in the regulation of the TCA cycle?
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