3.2.2根对水分的吸收2021-2022学年生物冀少版八年级上册随堂小测
※题型：单选题※知识点：单选题※试题难度：中等<br>生物体的结构与功能是相适应的,请推测下列四种组成根尖的细胞中,主要负责从土壤中吸收水和无机盐的是( )<br>A.<img src="https://picture2.zhihuicn.com/testImage/2/2017/2/15/9E59EEE800845215EFBBFFDFFD42DD1A.png"><br>B.<img src="https://picture2.zhihuicn.com/testImage/2/2017/2/15/68A801EF12B5F12308C527815A2C40CC.png"><br>C.<img src="https://picture2.zhihuicn.com/testImage/2/2017/2/15/AD64D675F8FA6B128B663AD51B028016.png"><br>D.<img src="https://picture2.zhihuicn.com/testImage/2/2017/2/15/A2FF9C54D8EF1049C813B4100BED7012.png"><br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2017/a3a2ae5e922b4d1fbaaa7e437ae6eed9/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2017/586f050a0cd944358dc41a08757e8221/97AB9BCAD79B7F2A509939111B3ADB79.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>如图是探究“溶液浓度大小对植物吸水的影响”实验取两个大小相同的同种萝卜,各从其顶端向下挖一个大小相同的洞:在图甲中萝卜的洞内装上浓盐水,在图乙中萝卜的洞内装上等量的清水。过一段时间后,观察现象。下列有关叙述正确的是( )<img src="https://picture2.zhihuicn.com/testImage/2/2021/7/2/77E56B8C07F722B6D14F68644541C085.png"><br>A.图甲中萝卜洞里的液体会变少<br>B.图甲中萝卜洞里的液体浓度会减小<br>C.图乙中萝卜洞里的液体会变多<br>D.图乙中萝卜洞里的液体浓度大于细胞液浓度<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2021/3cf59c3878c64940a83ab21df8843166/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2021/063fe234ec154ea9b7761d8f1a2aa243/9E94E97904EA582132A9A90BEBE6E316.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>在农业生产中由于施肥不当会造成“烧苗”现象,其原因是( )<br>A.土壤溶液浓度大于细胞液浓度,细胞吸水<br>B.土壤溶液浓度小于细胞液浓度,细胞吸水<br>C.土壤溶液浓度大于细胞液浓度,细胞失水<br>D.土壤溶液浓度小于细胞液浓度,细胞失水<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2019/1b775e1f0b3040d48c61d1bf5859eea1/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2019/bda019ebea0547b6a86b65acc02e0be7/83D7742D5C5A528FDCA6B05BEC2DC9AD.png"><br><br>
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