試題詳解

10. When oxygen binds to a heme-containing protein, the two open coordination bonds of Fe²⁺ are occupied by:
(A) one O atom and one amino acid atom.
(B) one O₂ molecule and one amino acid atom.
(C)one O₂ molecule and one heme atom.
(D) two O atoms.
(E) two O₂ molecules.