KROK 1 2014 – Question 14 · KROK (Medicine) · Biological Chemistry

It has been found out that one of a pesticide components is sodium arsenate that blocks lipoic acid. Which enzyme activity is impaired by this pesticide?

  1. A. Glutathione reductase
  2. B. Glutathione peroxidase
  3. C. Pyruvate dehydrogenase complex
  4. D. Methemoglobin reductase
  5. E. Microsomal oxidation
Hint

Start from which reactions in energy metabolism actually use lipoic acid as a coenzyme, then check which listed enzyme or process belongs to that group.

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