Photosynthesis - Light Independent Reaction

Question 1

What is light independent reaction

Answer 1

-Does not use light energy, but product from light dependent reaction
-Occur in stroma
-Produce hexose sugar that can be converted (glucose, protein)

Question 2

Calvin cycle - stages 1-2

Answer 2

1)Carbon fixation of Ribulose diphosphate (RuBP)
-RuBP (5C compound) bind with CO2 by enzyme rubisco (ribulose biphosphate carboxylase)
-create 6C compound (unstable) -> 2x glycerate 3 phosphate (3c compound)

2)Reduction of glycerate 3 phosphate
-Phosphorylation by ATP -> ADP + Pi
-reduced by by NADPH via hydrogenase
Into 2 triose phosphate

Question 3

Calvin cycle - stage 3

Answer 3

Regeneration of RuBP
-Triose phosphate phosphorylation by ATP
Become RuBP (every 5 of 6 triose phosphate made become this)
-1 of 6 triose phosphate become hexose sugar

Question 4

Calvin cycle diagram

Answer 4

https://i0.wp.com/zhtutorials.com/wp-content/uploads/2021/06/Calvin-cycle.jpg?resize=535%2C535&ssl=1

Question 5

Calvin cycle product

Answer 5

-RuBP (5of 6 triose phosphate)
-hexose sugar, can be converted to other biological molecules (1 of 6 triose phosphate)
-NADP for light dependent reaction

Since every 5 triose phosphate (3C) allows for 3 RuBP (5C)