Rubisco

Discussion of all aspects of biological molecules, biochemical processes and laboratory procedures in the field.

Moderators: honeev, Leonid, amiradm, BioTeam

Post Reply
User avatar
shardy7984
Garter
Garter
Posts: 6
Joined: Mon Nov 21, 2005 2:47 am

Rubisco

Post by shardy7984 » Mon Nov 21, 2005 2:51 am

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.
Top
MasterChief
Garter
Garter
Posts: 7
Joined: Wed Aug 24, 2005 7:46 pm

The light reactions stop....

Post by MasterChief » Tue Nov 22, 2005 12:20 am

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.
Top
User avatar
shardy7984
Garter
Garter
Posts: 6
Joined: Mon Nov 21, 2005 2:47 am

Post by shardy7984 » Tue Nov 22, 2005 4:15 am

THANK YOU :D
Top
Post Reply

Return to “Molecular Biology”

Who is online

Users browsing this forum: Bing [Bot] and 17 guests