In which one of the following do the two names refer to one and the same thing?

Options

(a) Tricarboxylic acid cycle and urea cycle
(b) Krebs cycle and Calvin cycle
(c) Tricarboxylic acid cycle and citric acid cycle
(d) Citric acid cycle and Calvin cycle

Correct Answer:

Tricarboxylic acid cycle and citric acid cycle

Explanation:

TCA cycle is so called bacause the first stable product formed is a tricarboxylic acid molecule that is citric acid. Hence the name citric acid cycle. It is also called the Kreb’s cycle.