Rubisco
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- shardy7984
- Garter
- Posts: 6
- Joined: Mon Nov 21, 2005 2:47 am
Rubisco
I 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.
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.
-
- Garter
- Posts: 7
- Joined: Wed Aug 24, 2005 7:46 pm
The light reactions stop....
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.
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