皮皮学，免费搜题
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【单选题】
关于酶的表述不正确的是A.
酶是一种催化剂
B.
绝大部分酶的本质是蛋白质
C.
酶反应前后没有结构和性质上的改变
D.
酶可缩短反应达到平衡所需时间
E.
酶可以改变反应平衡点
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皮皮学刷刷变学霸
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A.
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A.
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