下列有关细胞衰老、凋亡和癌变的说法中，错误的是_刷题宝

题干

下列有关细胞衰老、凋亡和癌变的说法中，错误的是（）

A：细胞凋亡是由细胞内的基因所决定的

B：衰老的生物体中，细胞都处于衰老状态，细胞新陈代谢速率减慢

C：衰老细胞内多种酶的活性降低，膜通透性改变，呼吸速率减慢

D：人体所有细胞中都有与癌变有关的原癌基因和抑癌基因，突变可导致癌变

上一题下一题 0.0难度选择题更新时间:2017-04-11 12:02:02

答案(点此获取答案解析）

B

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