An Early Step in the Process of Carbon Fixation Combines

question 16

Multiple Choice

An early step in the process of carbon fixation combines three molecules of CO₂ with three molecules of RuBP to produce three 6-carbon molecules,which are immediately converted to six 3-carbon molecules.These six molecules are phosphorylated and reduced to produce glyceraldehyde 3-phosphate (G3P) .What additional events occur to complete the Calvin cycle?

• A)release of two G3P to make sugars and regeneration of ATP from ADP
• B)release of one G3P to make sugars and regeneration of RuBP
• C)release of one G3P to make sugars and regeneration of NADPH from NADP⁺
• D)release of one G3P to make sugars and regeneration of citrate

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