Calvin Cycle - LIR

• This is also celled the Calvin cycle and as the name suggests it doesn't use light energy directly (but it does rely on the products of the light-dependent reaction).
• It takes place in the stroma of the chloroplasts.
• Here, the ATP and reduced NADP from the light-dependednt reaction supply the energy and hydrogen to make glucose from carbon dioxide.
• The Calvin cycle takes place in the stroma of the chloroplasts. It is also known as carbon dioxide fixation becaused carbon from CO2 is 'fixed' into an organic molecule.
• It makes a molecule called triose phosphate from Co2 and ribose phosphate (5C). Triose phosphate can be used to make glucose and other useful organic substances.
• There are few steps in the cycle, and it needs ATP and H+ ions to keep it going. There reactions are linked in a cycle, which means the starting compound, ribulose biphosphate, is regenerated.