题目内容

关于酶的可逆性共价修饰,正确的是

A. 活性和非活性两种形式在不同酶催化下可以互变
B. 不需要消耗能量
C. 催化互变的酶受激素等因素的控制
D. 最常见的共价修饰是磷酸化和去磷酸化

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