KROK 1 Stomatology 2013 – Question 29 · KROK (Dentistry)

Oral mucosa of a patient was treated with hydrogen peroxide. Instead of foaming, the blood turned brown. That is possible in case of reduced concentration of the following enzyme:

  1. A. Pseudocholinesterase
  2. B. Catalase
  3. C. Methemoglobin reductase
  4. D. Glucose-6-phosphate dehydrogenase
  5. E. Acetyltransferase
Hint

Think about which enzyme decomposes hydrogen peroxide into water and oxygen gas, producing the visible foam.

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