KROK 1 2014 – Question 169 · KROK (Medicine) · Biological Chemistry
A 36-year-old female patient has a history of B2-hypovitaminosis. The most likely cause of specific symptoms (epithelial, mucosal, cutaneous, corneal lesions) is the deficiency of:
- A. Cytochrome oxidase
- B. Cytochrome C
- C. Cytochrome A1
- D. Cytochrome B
- E. Flavin coenzymes
Hint
Think about which active forms of this vitamin act as prosthetic groups in oxidation-reduction enzymes, and why tissues with rapid turnover show damage first.
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