The word 'catalyze' means change by catalysis or cause to catalyze
RuBP: Ribulose Biphosphate It is a 5-carbon molecule which combines with carbon dioxide in the Calvin cycle to produce a six-carbon compound.Hope this helps!
Ribulose Bisphosphate
The activation energy of a reaction is lowered by enzyme.
Adenylate cyclase (AC)
Ellen S. Miller on the Sunlight Foundation