Multiple Choice
According to the proposed reaction sequence presented in the chapter,cytochrome c oxidase obtains a fourth electron from a ____ residue adjacent to the heme a3-ligated O2,thus forming a transient radical.
A) serine
B) threonine
C) tyrosine
D) phenylalanine
E) tryptophan
Correct Answer:

Verified
Correct Answer:
Verified
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