TLS Online TPP Program

#Id: 8994

#Unit 6. System Physiology – Plant

Carboxylation of the CO2 acceptor molecule. 

The first committed enzymatic step in the cycle is the reaction of CO2 and water with a five-carbon acceptor molecule (ribulose 1,5-bisphosphate) to generate two molecules of a three-carbon intermediate (3-phosphoglycerate).

TLS Online TPP Program

#Id: 8995

#Unit 6. System Physiology – Plant

Reduction of 3-phosphoglycerate. The 3-phosphoglycerate is converted to three-carbon carbohydrates (triose phosphates) by enzymatic reactions driven by photochemically generated ATP and NADPH.

TLS Online TPP Program

#Id: 8996

#Unit 6. System Physiology – Plant

Regeneration of the CO2 acceptor ribulose 1,5-bisphosphate. 

The cycle is completed by regeneration of ribulose 1,5-bisphosphate through a series of ten enzyme-catalyzed reactions, one requiring ATP.

TLS Online TPP Program

#Id: 8997

#Unit 6. System Physiology – Plant

Carboxylation is catalyzed by

TLS Online TPP Program

#Id: 8998

#Unit 6. System Physiology – Plant

Reduction of 3-phosphoglycerate is catalyzed

TLS Online TPP Program

#Id: 8999

#Unit 6. System Physiology – Plant

Regeneration is catalyzed by