Action of metabolic processes: Oligomycin - Binds and blocks the proton channel in ATP synthase Carbon...

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Action of metabolic processes: Oligomycin - Binds and blocks the proton channel in ATP synthase Carbon...

Action of metabolic processes:

Oligomycin - Binds and blocks the proton channel in ATP synthase

Carbon monoxide - Inhibits cytochrome oxidase

2,4-dinitrophenol (DNP) - Binds protons and moves them down their electrochemical gradient

Rotenone - Blocks electron transfer at NADH dehydrogenase

1.) Which metabolic poison described above will affect oxygen production in chloroplasts? Why other poisons described above do not affect oxygen production in chloroplasts? Explain your answers.

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Answer 1

Answer #1

Oligomycin will affect the oxygen production

Chloroplast contains ATP synthase that is similar to mitochondrial ATP synthase and is inhibited by the oligomycin that blocks the ATP synthesis.

Rest of the electrons carrier like NADH dehydrogenase, cytochrome oxidase are not present in chloroplast electron transport chain hence are not inhibited by rotenone and CO.

DNP is an uncoupler that release the energy in form of heat instead using it for ATP synthesis.

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Answer 2

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