Quinone

... and Reaction Mechanism of Bioenergetic Apparatuses Multiple approaches have been used to study the structure, function, and mechanism of quinone-mediated electron and proton transfer complexes of mitochondrial and photosynthesis electron transfer chains. Significant progresses have been ...

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... to NADP or to ferredoxin (fd). It is a powerful reductant. PS2, on the other hand, is better at grabbing electrons from water to transfer them to quinone (Q). It is a good oxidant. I think it might answer your question! Thanx! Dip Jyoti Chakraborty

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... O2 Complex I: NADH, FMN, FeS-proteins (FeS N1-N3) Complex I removes two electrons from NADH and transfers them to a lipid-soluble carrier, ubiquinone (Q). The reduced product, ubiquinol (QH2) is free to diffuse within the membrane. At the same time, Complex I moves four protons (H+) across ...

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