1. Tardigrade
  2. Question
  3. Biology
  4. During Citric Acid cycle, the various organic acid undergo decarboxylation. Which of the following organic acids of the above cycle have 4C, 5C and 6C respectively?

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. During Citric Acid cycle, the various organic acid undergo decarboxylation. Which of the following organic acids of the above cycle have $4C$, $5C$ and $6C$ respectively?

KCETKCET 2020Respiration in Plants

Solution:

In the citric acid cycle, a $4 C$ oxaloacetic acid combines with $2 C$ acetyl $CoA$ to give rise to $6 C$ citric acid. Isocitrate is an isomer of citric acid. The decarboxylation of citric acid produces a $5 C\, \alpha$-Ketoglutaric acid. This further undergoes decarboxylation to give rise to $4 C$ succinic acid and further converts to $4 C$ malic acid and oxaloacetic acid. Pyruvic acid or pyruvate is a $3 C$ compound. A representation of the citric acid cycle (Krebs cycle) is given below:
image