广西省河池市2018-2019学年七年级上学期期中生物试卷
※题型：单选题※知识点：单选题※试题难度：较易<br>生物圈包括( )<br>A.大气圈水圈岩石圈<br>B.大气圈下层整个水圈岩石圈上层<br>C.大气圈下层水圈上层岩石圈上层<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/7bc373320586469d81ab11645c744390/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/d3ef2e11ad3c4b069dbc63aed9ffde78/36DFC9172838FBA116BE88286CF9902C.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>千姿百态的菊花原产我国,目前世界上已有2万至2.5万个品种,它从哪个方面,说明了生物多样性( )<br>A.物种多样性 B.遗传多样性<br>C.生态系统多样性 D.生物多样性<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/83ce7e32b93c46b981c6d66fd6e3445d/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/7e1bbf7b70b74aae82a66baf22b404a1/9EB60964D8B0E93979C9D183B5D1BA75.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>下列都属于生物的是( )<br>A.流感病毒、机器人、珊瑚<br>B.植物、蘑菇、珊瑚虫<br>C.动物、钟乳石、恐龙化石<br>D.猫、细菌、流水<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/651db93470a54c54a0ef7fce48de5dd0/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/e960c7f6d1904f99a4cc188af4a6e176/47D9243D96B53729F5B5B980D3F7FBC2.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>黄河是我国的母亲河。下列四个选项中,( )是一个生态系统。A.黄河中的水 B.黄河中所有的生物<br>C.黄河中的鱼 D.整条黄河<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/9b7153e168304e43b91a62770640949b/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/e16f642049454b8b9307d02d64591941/C69C4484C5EF5EC298DA3D912537E6C1.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>科学探究的一般过程的步骤是( )<br>①发现并提出问题②制定计划③作出假设④得出结论⑤表达交流⑥实施计划A.①②③④⑤⑥ B.①③②⑥④⑤<br>C.①②④③⑤⑥ D.①③②⑥⑤④<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/209b02d7e8ed4f859b8b9d3144187805/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/a6b8d7802b5d4100b7724f848d2984ec/4536C20134AA33A29DF2F2808C201D84.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>使用显微镜有五个步骤:取镜安放、对光、放置玻片标本、观察、收放,图中表示对光步骤的是( )<br>A.<img src="https://picture2.zhihuicn.com/testImage/2/2020/5/14/09476C8639782491B1F806B90457AF5D.png"><br>B.<img src="https://picture2.zhihuicn.com/testImage/2/2020/5/14/8662D02B72C0C21785F6EF94AE9DAE31.jpeg"><br>C.<img src="https://picture2.zhihuicn.com/testImage/2/2020/5/14/CFDB7E3233CBD178670BE17A597BE215.jpeg"><br>D.<img src="https://picture2.zhihuicn.com/testImage/2/2020/5/14/73D27D5040ED3B9C3ECE6815E866D43E.jpeg"><br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/205645cf4d084fb5880834bea9c94c52/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/353017294bfa41f59670f0b462051ba5/9948A45DB6E5FAF022731B058A2FB1D0.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>当显微镜镜筒下降时,操作显微镜的人目光注视的部位是( )<br>A.镜筒 B.目镜 C.物镜 D.装片<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/9a0e63c44e9545f88f492871c807ba3a/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/a87569d046034eff9826053048438c82/EA24791DBD992227998092417E7739D8.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>小红同学在用显微镜观察洋葱鳞片表皮细胞,显微镜的目镜有5×和10×两种,物镜有10×和40×两种,下列组合中观察到细胞数目最少的是( )<br>A.目镜5×,物镜10× B.目镜10×,物镜10×<br>C.目镜5×,物镜40× D.目镜10×,物镜40×<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/23310a4329684cc3b5b8906a043181b9/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/b3079f268ee442f3b45230e83cdc3fb5/6A32D292CE1EB3DA9DD9606B8C4C6B6D.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>如图表示“制作洋葱鳞片叶表皮细胞临时装片”实验的部分操作步骤,按照实验操作过程,将①~④实验步骤进行排序,正确的是( )<img src="https://picture2.zhihuicn.com/testImage/2/2020/5/14/1D92677F0FC029F0474CB90929AEFC6A.jpeg"><br>A.①→②→③→④ B.④→③→①→②<br>C.①→②→④→③ D.③→④→②→①<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/ba376ec4d2384b5dbae29bfb506796a3/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/069d6a9883074cd1b227749f4ba09e85/D49FE1460F8D17F2DFCFC365214350D9.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>细胞的下列结构中,与生物遗传关系最密切的是( )<br>A.细胞膜 B.细胞核 C.细胞质 D.细胞壁<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/486a32f6e53d4f368d8e9a93f5a4e252/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/b5e5fb93307547d58012981f0bbffad4/392EDA57F004AD6D0148899A15C5B64A.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>成熟的葡萄吃起来是很甜的,这种甜味物质主要存在于( )<br>A.细胞壁中 B.细胞核中 C.细胞膜中 D.液泡内<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/ce2be8f57ce84c54bd74062338febbc5/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/b85fce8affef4d13b3859649c96523e9/2FCD9BF7FDD08BA70AFA2BD48E72FFC6.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>某同学用显微镜观察时,若光线很暗,则选用的光圈和反光镜依次是( )<br>A.较小的光圈,凹面镜 B.较大的光圈,凹面镜<br>C.较大的光圈,平面镜 D.较小的光圈,平面镜<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/04ae67cef6f34c6d95ed16c97bfe4549/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/e5f3436a8fc342898f15cca7e09b4492/FADBE44A67DFC7E6915243A7E7183FB4.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>把刻有“pb”的载玻片放在显微镜下观察时,视野中所看到的应当是( )<br>A.qb B.pp C.qd D.bp<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/231b029f012a4c53a21f30c7c5ea0c11/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/dcb9668e66fc46609cd177d49ac2c9d0/BA44876CC8461472223ECF353129D6A0.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>某生物体细胞中含有遗传物质的量为X,在细胞分裂过程中遗传物质的数量变化情况( )<br>A.X→X→X B.X→2X→2X C.X→2X→X D.2X→2X→X<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/10a7bea9054147669c30a104382e0538/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/edd419cb08e34ec892e6381e978a146b/EBEF173BDACB02BB625F81803C76B1FD.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>辣椒的果肉属于( )<br>A.营养组织 B.分生组织 C.输导组织 D.保护组织<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/7916e0bda9d7408b9d3fb449b07c8307/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/89cf9026c3ad41fe8f93fe5972be9dee/5F66E59B1395FBCE28FFC39F19EED45A.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>表皮、叶、种子依次属于( )<br>A.细胞、组织、器官 B.组织、器官、器官<br>C.细胞、器官、器官 D.组织、组织、器官<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/5b87dc8bb24448478808c531269aa354/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/8888f49382eb4d3b912ea22293b633a8/A8793305FA8F6B2701DA89D1D5B50A2B.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>贯穿植物体的根、茎、叶等器官的组织是( )<br>A.分生组织 B.营养组织 C.保护组织 D.输导组织<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/3b23d93b62ee4ed4a638179e829657ec/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/0a910f5660bb4832bd12433d119e9785/02E3FC9334340D3185427E466216446C.png"><br><br>※题型：判断题※知识点：判断题※试题难度：较易<br>生物圈是地球上最大的生态系统。<br>(判断对错)<br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/fc15a8a4f08147cbb2220057f953ccc0/1571767E7D00EDF0367E5DB18F5CF334.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/8af2a9280d114817978deab0df7bba55/87FFDC54D44291885E5CC32D0759A1E5.png"><br><br>※题型：判断题※知识点：判断题※试题难度：中等<br>生物的生存和发展不仅受环境的影响,反之也会影响和改变环境。<br>(判断对错)<br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/1f41719655c543edb298462d67162844/1571767E7D00EDF0367E5DB18F5CF334.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/bd2d3e6894b6430a9763ab0a0a9f0e19/ADFDCE07D14EEBF92105786EB6AB267F.png"><br><br>※题型：判断题※知识点：判断题※试题难度：中等<br>种是生物分类单位中最大的单位。<br>(判断对错)<br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/015419d7df7d4154a2b161dbd9581edd/1BF6542C45D8F9CAF60E902F8E776A20.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/84058988858140f9a7b4f13fb50be2ca/0344A4376C3EB9517B1CFBBBB06B54C0.png"><br><br>※题型：判断题※知识点：判断题※试题难度：中等<br>实验法是现代生物学研究的重要方法。<br>(判断对错)<br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/ae0efa5d3c1740b9ae6908cdea3009c3/1571767E7D00EDF0367E5DB18F5CF334.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/e4e6904f9b4945c29802914ab7abea39/D613981B95258D1492D5BA0D285C58E6.png"><br><br>※题型：判断题※知识点：判断题※试题难度：中等<br>所有的生物都有细胞结构。<br>(判断对错)<br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/94ed297f47ab41fda634707bca6334a3/1BF6542C45D8F9CAF60E902F8E776A20.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/8894096ce81e42cdb767987728171df0/00267B6CD0DE25FA4AAACF7F73605F0C.png"><br><br>※题型：判断题※知识点：判断题※试题难度：中等<br>进行显微镜观察时,用右眼观察,左眼闭住。<br>(判断对错)<br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/7609f25d3c914588a7400d2deb403368/1BF6542C45D8F9CAF60E902F8E776A20.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/c8394884688e4cb8bf9bc88c48403a86/5103BB13D32D4FF950AC0A1E8288EF82.png"><br><br>※题型：判断题※知识点：判断题※试题难度：中等<br>动物的保护组织具有保护作用。<br>(判断对错)<br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/e15e1dba89684e30be1ce5d2b318a48f/1BF6542C45D8F9CAF60E902F8E776A20.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/9b3b239b080745f9bcfd96f1da37a829/9729D835BAB364B3EF11535BCCDDFD31.png"><br><br>※题型：判断题※知识点：判断题※试题难度：中等<br>导管和筛管都属于输导组织,其中导管主要运输有机物。<br>(判断对错)<br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/66e75636a4f54b96a6b5ed853472695a/1BF6542C45D8F9CAF60E902F8E776A20.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/28d0f895eaf44d4b8a1d6a52442b6e14/F710F254564D3AFE08418BC61B6E21AD.png"><br><br>※题型：判断题※知识点：判断题※试题难度：较易<br>动植物细胞分裂时首先都是细胞核分裂为<br>个。<br>(判断对错)<br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/6efb2ecf2bdf4524b60583d0d98ad5e2/1571767E7D00EDF0367E5DB18F5CF334.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/e98325dd1a354c32ac230c28bb32c34d/3ACBF8872C631AFE47F7C70134F414E8.png"><br><br>※题型：判断题※知识点：判断题※试题难度：较易<br>玉米的结构层次从微观到宏观的排列顺序依次是:细胞→组织→器官→个体。<br>(判断对错)<br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/26f087c9ce79418a889ca80dd1efb537/1571767E7D00EDF0367E5DB18F5CF334.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/f90dc612739e4d83ae3722a46d13d427/3A36FEDF2904BDFA9ABEF6AD49F678AE.png"><br><br>※题型：填空题※知识点：填空题※试题难度：中等<br>环境中影响生物生活的各种因素叫做<br>。它分为<br>和<br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/aa34affdbab1463b8fe9f1a533adaed6/70A76345E422C1748E5F3E486C530304.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/52546afc9b6c4497bf6c6832531a67bd/EF512EF060FECD63DD3E288FEA78E9A2.png"><br><br>※题型：填空题※知识点：填空题※试题难度：中等<br>显微镜对光完成后,从目镜中以看到<br>形视野为宜。<br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/bf001259d0e54a5aa1e9ad6fadcfc2be/0BE19D3A4CC4B81877D1D6F4C1FEBACB.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/a829bf1dc7304129a03d88ccea8c999b/F8AC860E22038AEB85B11F6A4F336081.png"><br><br>※题型：填空题※知识点：填空题※试题难度：较易<br>在探究“光对鼠妇生活的影响”的实验中,变量是<br>,设置两种实验环境分别是<br>和<br>,实验中不能只用一只<br>鼠妇是为了<br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/b8250b6a166b428ba924fe346858a4f4/B8D03438390EAB8D397EC05449CDD6DE.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/ff99f61dade7413fba1deaf63bca6971/4C8907310ECB1D4BA282D164EEE27702.png"><br><br>※题型：填空题※知识点：填空题※试题难度：较易<br>如图中甲乙分别是植物、动物细胞结构模式图,<br>请据图<br>回答:<br><img src="https://picture2.zhihuicn.com/testImage/2/2020/5/14/E642DDB8589B8D6F68F5329159EB7C40.jpeg"><br>1.表示动物细胞结构模式图的是(填“甲”或“乙”)。<br>2.对细胞起支持和保护作用的是[]。<br>3.能控制物质进出细胞的是[]。<br>4.“龙生龙,凤生凤”描述的是生物的遗传现象。细胞内的遗传物质主要存在于[] 。<br>5.西瓜甘甜可口是因为[]含有大量糖分。<br>6.人体细胞和植物细胞都具有的结构是、和。(填序号)<br>7.甲乙图细胞结构中,能够进行呼吸作用的结构是,能进行光合作用的结构是。(均填序号)<br>8.在对材料进行染色时,染色最深的结构是细胞核,因为在细胞核内部有容易被碱性染料染成深色的物质是,其在细胞分裂的过程中变化最明显。<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/4da7366a4dd8423fb381f362aa64ca88/94D1E8EC8401C0ABC942E239C5AC323A.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/299b784898cc4bb4b3afb3702597163a/6305EA9CE69E410D7AE955DBBA054C5F.png"><br><br>※题型：填空题※知识点：填空题※试题难度：中等<br>被评为<br>2013<br>年度感动中国人物的“油菜花父子”<br>沈克泉和<br>沈昌健,<br>年来相继艰辛育种,只为一株油菜的梦想。如图所示是从受精卵到一株油菜的生长发育过程示意图,<br>请据图<br>回答:<br><img src="https://picture2.zhihuicn.com/testImage/2/2020/5/14/6202D31538259A35DAF7A7338EDFE2E6.jpeg"><br>1.图中A表示,B为的过程,B的结果是细胞增加,但细胞的形态和结构都不发生变化,并且都具有能力。<br>2.C为的结果,形成了不同的。<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/93b7433dd12d45f588c7a04b12f311e5/7DF79943656B2CD68C69CA52DEA3963B.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/7bb3b5e63bce48ae901e74b953b0d334/9FB1E9BB7E8F7517FDB7440F2E468F27.png"><br><br>
页:
[1]