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Multiple Choice
Which poison is known to block ATP production in cells?
A
Cyanide
B
Arsenic
C
Mercury
D
Lead
Verified step by step guidance
1
Understand that ATP (adenosine triphosphate) is the primary energy carrier in cells, and its production is crucial for cellular functions.
Recognize that the electron transport chain (ETC) in the mitochondria is a key site for ATP production through oxidative phosphorylation.
Identify that certain poisons can inhibit the electron transport chain, thereby blocking ATP production.
Cyanide is known to bind to cytochrome c oxidase, a component of the electron transport chain, preventing the transfer of electrons to oxygen and halting ATP synthesis.
Conclude that among the options provided, cyanide is the poison that directly blocks ATP production by interfering with the electron transport chain.