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In which one of the following do the two names refer to one and the same thing?
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- Tricarboxylic acid cycle and urea cycle
- Krebs cycle and Calvin cycle
- Tricarboxylic acid cycle and citric acid cycle
- Citric acid cycle and Calvin cycle
Correct Option: C
TCA cycle is so called because the first stable product formed in the cycle is a tricarboxylic acid molecule, that is, citric acid. Hence, the name citric acid cycle. It is also called the Krebs cycle as it was discovered by Krebs.
