KROK 1 2009 – Question 30 · KROK (Medicine) · Biological Chemistry
A patient has pellagra. Interrogation revealed that he had lived mostly on maize for a long time and eaten little meat. This disease had been caused by the deficit of the following substance in the maize:
- A. Tyrosine
- B. Histidine
- C. Alanine
- D. Tryptophan
- E. Proline
Hint
Think about the endogenous source from which the body normally makes part of the vitamin that is lacking in pellagra, and why maize is a poor supplier of it.
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