How many carbons does citrate have in the Krebs' cycle?
Correct answer: B. 6
- A. 5
- B. 6
- C. 8
- D. 4
Explanation
Citrate, the first compound formed in the Krebs cycle (also known as the citric acid cycle or tricarboxylic acid cycle), has six carbon atoms. Its chemical formula is often written as C6H8O7, indicating six carbon atoms, eight hydrogen atoms, and seven oxygen atoms. The Krebs cycle is a series of chemical reactions that takes place in the mitochondria of cells, and citrate is a key intermediate in this cycle.
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