what is cycle literal
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1) Carboxylation: CO2 is utilized for carboxylation of RuBP (Ribulose 1, 5-bisphosphate and this reaction is catalyzed by RuBP carboxylase-Oxygenase (RUBISCO). The product formed by this reaction is two molecules of 3-PGA.
2) Reduction: This stage contains a series of reactions as a result of which glucose is formed. Photochemically made ATP and NADPH are used for this step. Two molecules each of ATP and NADPH are required for fixing 1 molecule of CO2.
3) Regeneration: CO2 acceptor ribulose-1,5-bisphosphate is formed again for continuation of cycle. One molecule ATP is required for this step.
For the formation of one molecule of glucose, six molecules of CO2 need to be fixed; hence, six cycles are required.
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2) Reduction: This stage contains a series of reactions as a result of which glucose is formed. Photochemically made ATP and NADPH are used for this step. Two molecules each of ATP and NADPH are required for fixing 1 molecule of CO2.
3) Regeneration: CO2 acceptor ribulose-1,5-bisphosphate is formed again for continuation of cycle. One molecule ATP is required for this step.
For the formation of one molecule of glucose, six molecules of CO2 need to be fixed; hence, six cycles are required.
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