试题与答案

按如图装置进行实验,先放在黑暗环境中一昼夜,然后再移到阳光下照射. (1)几小

题型:解答题

题目:

按如图装置进行实验,先放在黑暗环境中一昼夜,然后再移到阳光下照射.

(1)几小时后分别从甲、乙两个放置中取下叶片,待叶片中的叶绿素溶解后,再滴上碘液.其结果是:甲装置中叶片变为______,乙装置中叶片______.这一现象说明______.

(2)该实验中,装置先放到暗环境处理一昼夜的目的是______.

答案:

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参考答案:A

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