KROK 1 2014 – Question 12 · KROK (Medicine) · Biological Chemistry
Cyanide is a poison that causes instant death of the organism. What enzymes found in mitochondria are affected by cyanide?
- A. Cytochrome b5
- B. NAD+-dependent dehydrogenase
- C. Cytochrome oxidase (aa3)
- D. Cytochrome P-450
- E. Flavin enzymes
Hint
Think about which mitochondrial enzymes contain a haem iron centre that a small anionic poison could bind, and what that does to the use of oxygen by cells.
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