Anyone know what this is? I explain step. This is the Calvin cycle, this presents three key stages: - Fixation quiescent of carbon dioxide; - Production of organic compounds; - Regeneration of ribulose diphosphate (RUDP) The Calvin cycle begins with the combination of carbon dioxide with a pentose , i.e. a carbohydrate which is composed of five carbon atoms, ribulose diphosphate (RUDP) yielding an intermediate, unstable compound with six carbons. This compound originates immediately moléculascom two to three carbon atoms, or phosphoglycerate phosphoglycerate (PGA). Phosphoglycerate molecules are phosphorylated by ATP and subsequently reduced by NADPH dependent from the phase of the light, forming aldehyde fosfoglicérico (PGAL). For every twelve molecules quiescent formed fosfoglicérico aldehyde ten are used for the regenar ribulose diphosphate and two are used for synthesizing organic compounds (carbohydrates and others). To form a olécula glucose is necessary that the cycle is performed six times by spending six molecules of carbon dioxide, eighteen quiescent molecules of ATP (three per cycle) and twelve molecules of NADPH (two per cycle).
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