3.2.2植株的生长第2课时2021-2022学年生物人教版七年级上册随堂小测
※题型:单选题※知识点:单选题※试题难度:较易<br>被人们称为“肥料三要素”的是( )<br>A.水、盐、尿素 B.氧气、水、有机物<br>C.氮、磷、钾 D.二氧化碳、水、尿素<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/9b86d4414a77425480c5352d0f6b0f94/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/6e6fd4777b10429599054d93fa3ee4aa/415F1435440A3959D4E6CB66E0DB2F8C.png"><br><br>※题型:单选题※知识点:单选题※试题难度:较易<br>农民种花生时,为了提高产量,可以适当多施( )<br>A.氮肥 B.磷肥 C.钾肥 D.钙肥<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2014/311d6b8aae374413991b5062fc93348e/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2014/6bcade4bad1c45c59c613fdbaaf3290c/48176AEDAB0C58775A081EAB3B8B70B7.png"><br><br>※题型:单选题※知识点:单选题※试题难度:较易<br>请问缺乏下列哪种元素会导致植物只开花不结果( )<br>A.氮 B.钾 C.磷 D.硼<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2014/df34a291a2114597aca9f124a5334327/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2014/038fc737f47a4f89ae2a3d2412d9d7bf/6285041BFBE0065E0D26FE9E43D2EF8C.png"><br><br>※题型:单选题※知识点:单选题※试题难度:中等<br>种庄稼要施肥,农民种植小麦最怕在抽穗灌浆后大风大雨引起植株倒伏,这样既会导致减产又难以收割,为此应该在小麦生长后期多施( )<br>A.氮肥 B.磷肥 C.钾肥 D.钙肥<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2021/ab01ed2e63be444381e0d8c69a9bf349/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2021/026a5680384c4160a3f96f96c465fb13/B120F123E87F030195C8D4DE0B8E8C8F.png"><br><br>※题型:单选题※知识点:单选题※试题难度:中等<br>种庄稼、养花草要施肥,肥料的作用主要是给植物的生长提供( )<br>A.有机物 B.水分<br>C.无机盐 D.水分、无机盐和有机物<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2021/542c6321215e4be8b1a6ae5c0128f17a/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2021/a1662e9f37824c5a825e8a5290061396/C77D441FBCE0A4FDD324376D33DB3A3E.png"><br><br>※题型:单选题※知识点:单选题※试题难度:中等<br>我们食用的青菜要高产,可以适当多施下列哪种无机盐( )<br>A.含氮的无机盐 B.含磷的无机盐<br>C.含钾的无机盐 D.含钙的无机盐<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2019/31611015e49d4c11bd48db2c7d5e7d78/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2019/7b511816f5ea4b9d82d27286d74f9d6d/37380C57F1D11557735C2CD79D48600B.png"><br><br>※题型:单选题※知识点:单选题※试题难度:中等<br>将两株同样大小的玉米幼苗,分别放在盛有等量蒸馏水和土壤浸出液的试管中培养,两周后观察到如图所示现象,该现象说明土壤浸出液中含有玉米生长所需的( )<img src="https://picture2.zhihuicn.com/testImage/2/2017/2/14/18FC96553126C48A42B04B0226379143.png"><br>A.水 B.无机盐 C.有机物 D.氧气<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2017/b02b6af89b2a4268bb22d553c718aff4/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2017/6f15d53c77ad4657bc8c678b2b693087/D2E9170F78415A55049B8CD5408FD2AC.png"><br><br>※题型:填空题※知识点:填空题※试题难度:较易<br>植物生长所需要的无机盐的种类有很多,其中需要量最多的三类无机盐分别是____________________。其中,使茎秆健壮,促进淀粉的形成与运输的是_________。<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/c898fa7ffb194af5bc060d893bc03260/F9FD6C48C7D0FF51CE307B59C6683751.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/aa6838d0fd434f0bb590ab33f698d4d7/C6CFC03EC19D06ED1EF23E445FD73CB0.png"><br><br>
页:
[1]