2020-2021学年生物北师大版七年级上册同步实验室（二十四）观察茎对水和无机盐的运输
※题型：单选题※知识点：单选题※试题难度：较易<br>将一段带叶的枝条,插在稀释的红墨水中,放在阳光下,一段时间后,发现茎被染红的部分是( )<br>A.木质部 B.形成层 C.韧皮部 D.髓<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/483f5747aa5a42e9955f23aef466bf89/DA50F910BECBBBA4AAB35D7A1AB24524.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/854dac8e89ec4bbfacd0b646aeda0e93/A39212798AC3DC92DC7E36F6F1674C11.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>松材线虫病被称为“松树癌症”,松材线虫通过松褐天牛传播,寄生在木质部,破坏了细胞,导致松树枯死。如图为松树茎的横切面,松材线虫寄生的部位是( )<imgA.甲 B.乙 C.丙 D.丁<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/82aa76e4aa5e40a6bf5c3d484a47ff0c/D9A7E0722DAB5479A60928D5B8864BC6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/abc5fe0da35c4d24a5148d5a4e956a36/9EAB083BEE353F033E8FEB49FC40A3D9.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>我国南方有“笋有多大,竹有多粗”的说法,这说明竹子茎中没有( )<br>A.韧皮部 B.形成层 C.木质部 D.髓<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/7017a6c733c84f8a98c6805981ddb7c2/4EF59C4461E28F3B3B09551EB8B9AC3F.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/67aa16a5dafd44f08ff31ce55cea487d/3ADBAD9B61490AEFAE7BC32EDE304F66.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>移栽树木时,给树“挂吊瓶”补充水和无机盐,以提高成活率,吊瓶的针头应插到茎的( )<br>A.树皮 B.形成层 C.木质部 D.髓<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2016/754961a1684747b7a9a691918242d234/D7C9A679F3C72D4F1064B7D0A0FD4AD8.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2016/134333d9f9bc4bca87bbda6b7ef82ca4/54738FAEAD578490AD8DF2642CFDF392.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>用解剖针扎杨树茎的横断面,感觉最硬的部位是( )<br>A.木质部 B.髓 C.韧皮部 D.形成层<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2012/56e58217a80b4b3b9e0e767911a74e60/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2012/9a513aa2bc9b4fd9be35fcf8f22acf64/E2F924B44C79802D6367A7FFA74C8AAC.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>杨树是生活中常见的木本植物,其茎从外到内的结构依次是( )<br>A.树皮→形成层→木质部→髓<br>B.树皮→木质部→形成层→髓<br>C.树皮→形成层→髓→木质部<br>D.树皮→木质部→髓<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2019/4ebb8ad7274141ac8024f737a88013fa/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2019/97ce51bedd7c4250aec70250157bb96c/4064F8FB8D3C60FB006F3A898FAED836.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>如图为木本植物茎的横切面结构示意图,下面有关叙述,正确的是( )<img src="https://picture1.zhihuicn.com/2/F75379225596CD9560EF022F04784F6E.png"><br>style="VERTICAL-ALIGN:middle">A.1是比较坚硬的韧皮部<br>B.5是树皮,其内层的4是木质部<br>C.3是髓,它呈浅绿色,结构比较疏松<br>D.茎的某一部分受到创伤并露出2,则露出的部分不能增粗<br>答案<br><img src="https://picture1.zhihuicn.com/Answer/2/9/2BB966A0E0D0EF1A330D14E3ADEDA5C5.png"><br>解析<br><img src="https://picture1.zhihuicn.com/Explain/2/9/A5670E9AA5A599EE13F06E6A9509A09F.png"><br><br>
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