KROK 1 2023 – Question 25 · KROK (Medicine) · Biological Chemistry

Copper deficiency has an effect on energy metabolism in the human body. What substance becomes deficient as a result of this process?

  1. A. Cytochrome oxidase
  2. B. Pyruvate carboxylase
  3. C. Lactate dehydrogenase
  4. D. Arginase
  5. E. Succinate dehydrogenase
Hint

Consider which copper-containing enzyme sits at the terminal step of the respiratory chain, passing electrons to oxygen.

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