L7 Calvin cycle

What does the Calvin Cycle do?

Takes ATP and NADH (produced in light dependant reaction), and uses it to fix CO2 and produce carbohydrate.

Where does the Calvin Cycle take place?

Stroma

3 stages of the calvin cycle

fixation, reduction, regeneration

fixation

Takes 3 5-carbon molecules (RuBP), and adds 3 CO2 to make 6 3-carbon molecules (3-PGA). Not high energy.

reduction

Uses the outputs of the light dependant reaction (6ATP and 6NADPH) to turn 6 low energy (3-PGA) into HIGH energy molecules (G3P). This process splits the ATP and NADH, making 6ADP+6Pi, and 6NADP+(H+)

regeneration

Takes five of the 6 high energy G3P, and turns them back into RuBP using 6ATP (turns ATP into 6 ADP+Pi). The other carbon molecule is the output of the calvin cycle. It combines with another 3-carbon molecule (gone through the calvin cycle)to make glucose.

What molecules are produced during the Calvin Cycle?

The end product is 1 G3P, needs to compine with another G3P to make glucose.