Light independent Reaction

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Light Independent Reaction (6 marks)

Exam question: During the light-independent reaction of photosynthesis, carbon dioxide is converted into organic substances. Describe how (6 marks)

-Carbon dioxide combines with 5C RuBP (ribulose biphosphate)
 - using the enzyme Rubisco (not in mark scheme)

-producing 2 molecules of 3C GP (glycerate-3-phosphate)

-GP reduced to TP (triose phosphate)

-using reduced NADP from the light-dependent recation 

-using energy from ATP

-TP converted to glucose/other useful orgnaic substances e.g hexose/ back to RuBP

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