Light Independant reactions (Calvin Cycle)

Question 1

1. Fixation

Answer 1

CO2 attached to ribulose biphosphate (RuBP) by enzyme Rubisco (3CO2)

Question 2

PGA

Answer 2

splits, 18 carbons split to make 3-carbon compounds. Makes space for more bonds

Question 3

2. Reduction

Answer 3

High energy electrons and phosphate are removed from carriers from light reactions and get attached to the PGA molecules (they get reduced)

Question 4

NADPH AND ATP

Answer 4

oxidized forming back to NADP+ and ADP, then return back to light reactions. (Re-reduced)

Question 5

6 G3P

Answer 5

reduction creates six high-energy 3-carbons G3P molecules

Question 6

1 G30

Answer 6

one G3P removed from each CB cycle, 2 rounds of CB cycle needed to make one glucose. (C6H12O6)

Question 7

3. Regeneration

Answer 7

Five 3-carbons split G3P are used and rearranged to regenerate RuBP so cycle can continue (5G3P)