Calvin Cycle

Rubisco ____tell the difference between CO2 and O2!

CAN'T

CO2 is "fixed" into ____(C3 organic molecule) by the action of the enzyme RuBisCo on RuBP.

G3P

Calvin cycle needs _____

LIGHT

H+ and energy transform PGA to____(C3 sugar)

PGAL

every 3 CO2's fixed forms one usable molecule of ___

PGAL

C6H12O3

PGAL NOT glucose!

Phase 1:

carbon fixation

input into Calvin cycle

inorganic carbon

Calvin cycle no longer involves capturing ___ energy.

light

___ reactions produced lots of usable ATP

light

output of Calvin cycle

organic carbon

BUT ATP is _____(storing energy only for a few minutes)

unstable

carbon fixation reaction

Calvin cycle

dark reaction

Calvin cycle

ATP and NADPH

Produced during light reactions, they are needed for energy to power reactions.

Phase 3:

Regeneration of the CO2 acceptor (RuBP)

Calvin cycle takes place in the ____ of the chloroplast.

Stroma

Phase 2:

reduction

most ___ are ___ at night, making LOW CO2 levels.

stomates, closed.