(couleur) grey (Grande-Bretagne) , gray (USA) il fait gris it's a dull day, it's a grey day. faire grise mine to look morose. faire grise mine Ã  qn to give sb a cool reception.
In electrophilic aromatic substitution, the benzene ring acts as an electron donor (Lewis base or nucleophile) and reacts with an electron acceptor (Lewis acid or electrophile). The result of electrophilic aromatic substitution reactions is that an aromatic hydrogen is replaced by some other atom or functional group.
When an NADH molecule donates an electron. That electron is passed through an electron transport chain. Three membrane proteins that take part in the chain are powered by this electron to transport a proton from the inner mitochondrial compartment to the outer mitochondrial compartment.he later step powers the active transport of hydrogen ions from stroma into the thylakoid space. 5) Electrons pass from Acceptor 3 to the PS1 chloroplast that was hit by a separate photon, exciting it, and creating a âhole.â 6) Electrons from the PS1 chloroplast are passed on to the electron acceptor and on to A2.