Cyanide Is a Poison Which Prevents the Last Carrier in the Electron

question 41

Multiple Choice

Cyanide is a poison which prevents the last carrier in the electron transport chain (cytochrome C oxidase) from transferring the electron to the final electron acceptor. Which of the following would not be a consequence of exposure to this poison?

• A) Movement of electrons through the chain would stop.
• B) Protons would no longer be pumped outside the membrane.
• C) ADP would no longer be recharged to form ATP.
• D) Carbon dioxide would continue to be generated.
• E) Glycolysis, the intermediate reaction, and the Krebs cycle would stop as the cell would run out of the necessary oxidized coenzymes NAD+ and FAD.

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