Biology Forum › Molecular Biology › Rubisco
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- November 21, 2005 at 2:51 am #2599
shardy7984ParticipantI have a question about Rubisco & light reactions.
Why does a poison that inhibits rubisco in the Calvin Cycle, also inhibit light reactions?
Is it b/c of carbon fixation & photorespiration? Or does that have nothing to do with it? But Oxygen is the poison that inhibits the enzyme right?
Sorry, this is something that just confuses me. - November 22, 2005 at 12:20 am #33211MasterChiefParticipant
Poison that affects rubisco causes a stop in the calvin cycle. This means that all the NADPH from the light reactions have no where to place their electrons and become NADP+. This causes a stop in the light reactions because excitating the electrons in chlorophyll no longer produces useable electrons.
- November 22, 2005 at 4:15 am #33224shardy7984Participant
THANK YOU 😀
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