-
- author "me"
- fileName "Calvin cycle"
- tags ""
- description ""
- Source of chemical energy
- ATP
-
-
3 phases
1-carbon fixation, 2-reduction, 3-regeneration
-
What is carbon fixation?
Incorperation of CO2 into organic molecules (hydrocarbons)
-
Carbon fixation is catalysed by...
Rubisco (enzyme)- 1 6-C sugar breaks down into 2 phosphoglycerates (PGAs)
-
What is reduction?
Where NADPH and ATP from light reactions are used (6 ATP and 6 NADPH)
-
What is regenerated?
Starting material- ribulose biphosphate (RuBP) *requires 3 ATP
-
Need:
3 CO2, 6 NADPH, 9 ATP
-
Get:
1 PGAL, 9 ADP, 9 Pi, 6 NADP
-
-
How many times does the cycle go to make 1 PGAL?
3 (6 for a glucose)
-
Why PGAL?
More potential and chemical energy
|
|
