medium · MCAT bio-biochem
Cyanide binds irreversibly to Complex IV of the electron transport chain, preventing the transfer of electrons to oxygen.
In a cell treated with cyanide, what is the most immediate metabolic consequence for the Citric Acid Cycle?
- Pyruvate is converted directly to Citrate in the cytoplasm.
- The cycle accelerates to compensate for lost ATP production.
- The cycle halts due to a depletion of NAD⁺ and FAD.
- The cycle continues normally but switches to using NADP⁺.
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