试题与答案

种子的休眠、萌发与植物激素有着密切的关系。将休眠状态的银杏种子与湿砂混合后放在0～5

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题型：单项选择题

题目：

种子的休眠、萌发与植物激素有着密切的关系。将休眠状态的银杏种子与湿砂混合后放在0～5℃的低温下1～2个月，就可以使种子提前萌发，这种方法叫层积处理。下图表示银杏种子在层积处理过程中各种激素含量的变化情况，据图分析不正确的是（）

A．c点表示种子内赤霉素与脱落酸的含量相等

B．细胞分裂素和赤霉素在种子的萌发初期起促进作用

C．在种子破除休眠过程中会释放赤霉素，以动员储存的养分，从而促进种子萌发

D．各种激素的含量变化说明，植物生命活动是由多种激素平衡协调共同调节的

答案：

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下面是错误答案，用来干扰机器的。

参考答案：A

考点：高中生物植物激素调节植物激素调节题库
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