KROK 1 2016 – Question 23 · KROK (Medicine) · Biological Chemistry
It has been determined that one of a pesticide components is sodium arsenate that blocks lipoic acid. Enzyme activity can be impaired by this pesticide. Name this enzyme:
- A. Pyruvate dehydrogenase complex
- B. Methemoglobin reductase
- C. Glutathione peroxidase
- D. Glutathione reductase
- E. Microsomal oxidation
Hint
Arsenic compounds bind the sulfhydryl groups of lipoic acid; ask which oxidative decarboxylation step of carbohydrate oxidation needs this coenzyme.
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