KROK 1 2018 – Question 178 · KROK (Medicine) · Biological Chemistry
A 25-year-old young man came to the doctor complaining of general weakness, rapid fatigability, irritability, reduced working ability, and bleeding gums. What vitamin is likely to be deficient in this case?
- A. Retinol
- B. Thiamine
- C. Riboflavin
- D. Ascorbic acid
- E. Folic acid
Hint
Bleeding gums and fatigue suggest weak capillary and connective tissue walls; ask which vitamin acts as a cofactor in the hydroxylation steps that stabilize collagen.
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