試題詳解

79. Carbon monoxide is extremely dangerous to living organisms because it
(A) is an irreversible inhibitor of serine proteases such as acetylcholine esterase.
(B) competes very effectively with oxygen for binding to the sixth coordination position of Fe²⁺ in heme.
(C) causes oxidative DNA damage.
(D) is a small nonpolar molecule and therefore acts like a detergent and rips open cell membranes.
(E) carbamylates free amino groups in a variety of proteins and enzymes, thus disrupting normal hydrogen bonding.