reversed electron flow造句

• In purple bacteria, NADH is formed by reverse electron flow due to the lower chemical potential of this reaction center.
• Like sulfur oxidation, reverse electron flow must be used to form the NADH used for carbon dioxide fixation via the Calvin cycle.
• As in sulfur and iron oxidation, NADH for carbon dioxide fixation using the Calvin cycle is generated by reverse electron flow, thereby placing a further metabolic burden on an already energy-poor process.
• Sulfur-oxidizing organisms generate reducing power for carbon dioxide fixation via the Calvin cycle using reverse electron flow, an energy-requiring process that pushes the electrons against their thermodynamic gradient to produce NADH . Biochemically, reduced sulfur compounds are converted to sulfite ( ) and subsequently converted to sulfate ( ) by the enzyme sulfite oxidase.