科学初二上册 第6章 植物的一生(测验卷)
Quiz
•
Science
•
8th Grade
•
Practice Problem
•
Medium
WEE PENG GOW
Used 496+ times
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
种子中的某一部分,遇碘会变成蓝色是由于该部分含有 ( )。
淀粉
脂肪
无机盐
蛋白质
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
菜豆种子的结构包括( )。
种皮和胚
胚芽、胚轴和胚根
) 胚芽、胚轴和子叶
胚芽、胚轴和种皮
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
关于玉米种子的叙述错误的是( )。
只有一片子叶
胚是种子内的主要部分
子叶能吸收和转运营养物质
营养物质贮藏在胚乳和子叶内
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
单子叶植物和双子叶植物种子的不同之处是:
胚乳的有无
子叶的有无
子叶数目和种皮
子叶数目和储存营养物质的结构
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
叶子是有下列哪个构造发育而形成的?
胚芽
胚乳
子叶
种皮
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
将具有生命力的菜豆种子浸泡后剥去种皮,并做如下处理后,在适宜的环境条件下培养,不可能发芽的是( )。
A
B
C
D
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
当图2中的种子萌发时,哪个部分的体积明显的减少?
A
B
C
D
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