2019-2020学年度浙教版初中八年级上册科学第3章 生命活动的调节习题精选
2019-2020学年度浙教版初中科学八年级上册第3章 生命活动的调节第3节 神经调节习题精选第二十九篇
2019-2020学年度浙教版初中科学八年级上册第3章生命活动的调节第3节神经调节习题精选第二十九篇第1题【单选题】下列关于反射弧的叙述，错误的是( )A、反射弧通常由感受器、传入神经、神经中枢、传出神经和效应器五部分组成B、感受器接受刺激后能产生兴奋C、效应器由传出神经末梢构成D、一个完整的反射活动至少需要两个神经元的参与【答案】：【解析】：第2题【单选题】神经系统结构和功能的基本单位是( )A、大脑B、小脑C、神经元D、脊髓【答案】：【解析】：第3题【单选题】人类特有的条件反射是( )A、生下来的婴儿吸吮乳头B、受到教师表扬，高兴C、母亲精心照顾婴儿D、小儿看见白衣护士，啼哭【答案】：【解析】：第4题【单选题】下列不属于反射的是( )A、草履虫避开盐粒刺激B、简单反射C、复杂反射D、有蚊子叮咬时用手拍打【答案】：【解析】：第5题【单选题】下列分类正确的是( )。
①大脑②树突③脑干④轴突⑤细胞体⑥脊神经A、①②④，③⑤⑥B、①③⑥，②④⑤C、①④②，③⑤⑥D、①③④，②⑤⑥【答案】：【解析】：第6题【单选题】神经系统的中枢部分包括( )A、脑和脊髓B、脑和脑神经C、脑神经和脊神经D、脊髓和脊神经【答案】：【解析】：第7题【单选题】下列关于人体激素的说法不正确的是( )A、激素是由人体的内分泌腺分泌的B、内分泌腺分泌的激素通过导管运输到作用部位C、侏儒症是由于幼年时垂体分泌的生长激素不足引起的D、激素在人体内的含量很少，但作用很大，对人体生理活动起特殊的调节作用【答案】：【解析】：第8题【单选题】生物科技小组用甲状腺制剂饲料喂蝌蚪，结果提前变成小型青蛙，说明甲状腺激素能( )。
A、促进新陈代谢B、提高神经系统的兴奋性C、促进生长发育D、加速体内的物质氧化分解过程【答案】：第9题【单选题】流程图有利于我们对所学知识进行整理和归纳。
以下几幅流程图正确的是( )A、人的生长过程：婴儿期→儿童期→幼儿期→青春期→中年期→老年期B、完成反射活动过程：效应器→传入神经→神经中枢→传出神经→感受器C、蝗虫的发育过程：受精卵→幼虫→蛹→成虫D、氧气进入人体的过程：鼻腔→咽→气管→支气管→肺泡→肺泡周围的毛细血管【答案】：【解析】：第10题【单选题】手指被扎，痛觉形成的部位是( )A、指尖B、效应器C、感受器D、大脑皮层【答案】：第11题【填空题】某病人肢体震颤，不能完成食指迅速而准确地指鼻尖动作，他发生病变的部位是______。
精选2019-2020年初中八年级上册科学第3章 生命活动的调节第1节 植物生命活动的调节浙教版习题精选七十
精选2019-2020年初中八年级上册科学第3章生命活动的调节第1节植物生命活动的调节浙教版习题精选七十第1题【单选题】植物具有向光性生长的特点，其主要原因是与下列哪一物质有关( )A、水B、氧气C、生长素D、二氧化碳【答案】：【解析】：第2题【单选题】能够抑制植物生长发育的植物激素是( )A、赤霉素B、细胞分裂素C、脱落酸D、乙烯【答案】：【解析】：植物体内能够促进叶和果实衰老脱落的植物激素是( )A、赤霉素B、细胞分裂素C、脱落酸D、乙烯【答案】：【解析】：第4题【单选题】植物茎的向光性和根的向地性说明生物体具有( )A、能够生长B、有一定的结构C、应激性D、能够适应环境【答案】：【解析】：如图所示为各植物常见的运动情况，图中哪一运动与其它三者的运动类别不同( )A、红翻红白天开放晚上花瓣“合眼”B、“喜水”的根系C、在窗边“探望”的盆景D、“缠杆”的丝瓜【答案】：【解析】：第6题【单选题】在不用人工修剪和使用药剂的情况下，要培育出如图所示的植物盆景，可以实施多种方案。
下列对方案及其原理的分析中，都正确的是( )A、把植物放在单侧光的环境下，利用茎的感性运动B、把植物放在单侧光的环境下，让生长素移向背光的一侧C、把植物侧放在地上，利用茎的感性运动D、把植物侧放在地上，让近地侧的茎生长得比远地侧的快【答案】：【解析】：第7题【单选题】达尔文探究植物的向光性实验，下列说法错误的是( )A、A图说明植物有向单侧光弯曲生长的特性B、对照B，C图，说明在芽尖处可能存在某种刺激生长的物质C、对照C，D图，说明在单侧光照射下，芽尖处存在的这种刺激生长的物质分布不均匀D、由此达尔文证明了植物生长素的存在【答案】：【解析】：第8题【单选题】如图所示是小科研究“环境因素对植物感应性生长影响”的实验，一短时间后，暗箱中植株的生长状况最有可能是( )A、B、C、D、【答案】：【解析】：第9题【单选题】下列生命活动中，与植物的感应性现象无关的是( )A、浸在水中的大豆种子逐渐胀大B、倒伏的韭菜自然挺立起来C、含羞草受到触动时幼叶下垂D、松树的根在水丰富一侧分布较多【答案】：【解析】：第10题【单选题】台风过境绿色植物倒伏后，它的茎杆前端部分恢复直立状态，引起这种现象的原因是( )A、受地球引力的影响表现出向地性生长B、受地球引力的影响表现出负向地性生长C、受肥料的影响表现出向化性生长．D、受水分的影响表现出向水性生长【答案】：【解析】：第11题【单选题】瓶插鲜花的鲜重累积增加率下降时插花衰败。
2019-2020学年度初中八年级上册科学第3章 生命活动的调节第3节 神经调节浙教版课后练习十
2019-2020学年度初中八年级上册科学第3章生命活动的调节第3节神经调节浙教版课后练习十第1题【单选题】2017年5月，智能机器人“阿尔法狗（Alphago）”与中国棋手柯洁对奕。
从功能上看，“阿尔法狗”分析并判断棋局的结构相当于反射弧中的( )A、感受器B、效应器C、神经中枢D、传出神经【答案】：【解析】：第2题【单选题】下列关于人体生命活动或现象叙述正确的是( )A、听觉的形成在耳蜗B、吃梅止渴是复杂的（即条件）反射C、肾小管重吸收形成尿液D、幼年生长激素分泌不足可患呆小症【答案】：【解析】：第3题【单选题】下列属于复杂反射的是( )A、谈虎色变B、缩手反射C、膝跳反射D、眨眼反射【答案】：【解析】：第4题【单选题】巨人症和侏儒症都是由某种激素分泌异常引起的，这种激素是( )A、生长激素B、性激素C、胰岛素D、肾上腺素【答案】：【解析】：第5题【单选题】下列不属于传递信息行为的是( )A、黑长尾猴发现蛇时发出叫声B、工蜂跳“8”字舞C、蟑螂昼伏夜出D、鸟类鸣叫【答案】：【解析】：第6题【单选题】“植物人”是指只有呼吸和心跳，但不能自主活动、没有意识的病人，这种病人的神经系统可能没有受到损伤的部位是( )。
A、大脑B、小脑C、脑干D、脊髓【答案】：【解析】：第7题【单选题】人类的以下哪种活动是在大脑皮层参与下完成的( )A、遇到强光立即眨眼B、手碰到热的东西立即缩回C、新生儿啼哭D、老师喊‘上课’，学生马上起立【答案】：【解析】：第8题【单选题】饮入过量酒精对人的影响有( )①对心脏、血管等有害②维护肝功能③使脑过度兴奋或麻痹④神经衰弱、智力减退⑤活跃思维、增强智力。
A、①③⑤B、②⑤C、①②④D、①③④【答案】：【解析】：第9题【单选题】下面关于人体生命活动调节的叙述，正确的是( )。
A、人体生命活动主要受神经系统的调节，也受激素调节的影响B、神经调节的基本方式是复杂的反射C、人体生命活动的调节以激素调节为主D、不论动物、植物还是微生物，都有反射活动【答案】：【解析】：第10题【单选题】下列疾病与其对应的原因搭配合理的是( )A、夜盲症﹣﹣缺乏维生素BB、糖尿病﹣﹣胰岛素分泌不足C、地方性甲状腺肿﹣﹣缺钙D、侏儒症﹣﹣幼年时期甲状腺激素分泌不足【答案】：【解析】：第11题【填空题】人体内最大的内分泌腺是______，它分泌______激素，胎儿时期分泌不足时会患______，成年时分泌不足会引起______，成年时分泌太多会引起______。
2020八年级科学上册 第3章 生命活动的调节 3.1 植物生命活动的调节同步练习 (新版)浙教版
3.1 植物生命活动的调节一、选择题1．下列属于植物的向性运动的是( )A.用振动的音叉轻碰含羞草，含羞草的叶柄下垂，羽状小叶合闭B．捕蝇草能够迅速关闭叶片捕食昆虫C．睡莲习性很奇特，花朵白天开放，夜晚闭合D．室内靠窗边的花草总朝着窗外生长2．下图中向日葵的花盘总是朝向太阳的方向生长，这说明了( )A.向日葵对水分的变化产生感应性B．向日葵对光照强度的变化产生感应性C．向日葵对温度的变化产生感应性D．向日葵对氧气的变化产生感应性3．当某植物顶芽比侧芽生长快时会产生顶端优势，其主要原因是( )A.侧芽附近的生长素浓度过高，其生长受抑制B．侧芽附近的生长素浓度较低，其生长受抑制C．顶芽附近的脱落酸浓度较高，其生长被促进D．侧芽附近的细胞分裂素浓度较高，其生长受抑制4．在燕麦胚芽鞘的顶端套上一个不透光的锡箔小帽，然后在暗室中从左侧照光，胚芽鞘将( ) A.向左侧弯曲生长B．无规律弯曲生长C．向右侧弯曲生长D．直立生长5．能够抑制植物发育的植物激素是( )A．赤霉素B．细胞分裂素C．脱落酸D．乙烯6．现在科学家已经知道，单侧光之所以能引起植物向光生长，是因为单侧光能( )A.促使植物的胚芽尖端产生生长素B.使胚芽尖端产生更多的生长素C．使胚芽尖端的某侧不产生生长素D．使植物体内生长素分布不均7．如下图所示是研究植物向性运动的实验示意图，实验结果不能说明的是( )A.根具有向重力性，茎具有负向重力性B.生长素对植物的作用具有二重性C.根和茎的向性运动都是一种适应D．产生生长素的部位是根尖和茎尖8．如下图所示，将一盆栽植物置于地面，则其水平方向根的近地侧和茎的近地侧生长素浓度变化曲线为（图中虚线表示对生长既不促进也不抑制的生长素浓度）( )A.①④B.②③C.①②D.③④9.飞行于太空中的宇宙飞船中，放置有一株水平方向的幼苗，培养若干天后，根、茎生长的方向是( )A．根向下、茎向上生长B．根和茎都向下生长C．根向水平方向、茎向上生长D．根和茎都向水平方向生长10．如下图所示，把含有生长素的琼脂小块，分别放在甲、乙、丙三株幼苗切面端的不同位置上，然后从左侧给予光照．下列对此实验结果的描述错误的是( )A.甲向右侧弯曲生长B．乙直立生长C．丙向左侧弯曲生长D．甲、乙、丙都弯向光源生长11.在菜豆的幼根处作上标记，如图．置于适宜条件下，几天后，能正确表示菜豆幼根生长情况的是( )12.如下图所示，甲、乙分别用不透光的锡箔纸套在燕麦胚芽鞘的不同部位，丙、丁、戊则分别用不透水的云母片插入燕麦胚芽鞘的不同部位，从不同方向照光，培养一段时间后，胚芽鞘的生长情况是( )A. 甲不生长也不弯曲、乙直立生长、丙向左生长、丁直立生长、戊向右生长B．甲直立生长、乙向右生长、丙向左生长、丁不生长也不弯曲、戊向左生长C．甲向左生长、乙向右生长、丙直立生长、丁向右生长、戊向左生长D．甲直立生长、乙向右生长、丙直立生长、丁不生长也不弯曲、戊向右生长二、综合题13．探究植物对水的反应，植物受单向外界因素的刺激而引起的定向运动，它的运动方向随刺激方向的改变而发生变化，如果土壤中水分分布不均匀，有的地方干，有的地方湿，植物的根将怎样生长？长在河堤边的植物与长在一般土地里的植物相比，根的生长情况会有什么不同？(1)提出问题：__________________________．提示：土壤中水分分布不均匀，有的地方干，有的地方湿，植物的根将怎样生长？(2)建立假设：根据已有的知识和经验，你的假设是__________________________．(3)设计验证方案：①要准备的实验材料和器具：__________________________；②需控制哪些变量？___________________________；③实验步骤：____________________________________________________.④在小组里交流和讨论探究方案，确定是否需要进一步修改和完善．(4)实施方案：按小组所制定的研究方案或利用下图所示的实验装置进行实验和观察，并根据实验的内容和结果进行记录．(5)实验结果与结论：①你预测的实验结果是_____________；②实验结果与预测的结果一致吗？③你的结论是_____________；14．根据右图所示植物生长状况回答问题：(1)图中植物根的向地性和茎的负向地性，在生物学上称为_____________。
2019-2020学年度浙教版初中八年级上册科学第3章 生命活动的调节练习题十六
2019-2020学年度浙教版初中八年级上册科学第3章生命活动的调节练习题十六第1题【单选题】A、小明在家休息时，体内产热的器官主要是内脏B、小明体温并不是恒定不变的，而是在一定范围内变化C、小明在11：00～13：00间，其体内的产热与散热保持相对平衡D、小明在服用了退烧药后的四小时内，体内的产热与散热保持相对平衡【答案】：【解析】：第2题【单选题】下列属于植物向性运动的是( )A、菊花在秋天开花B、某植物叶表面的气孔在白天打开，晚上关闭C、含羞草的小叶受到振动后合拢D、横倒在地上的蕃茄茎背地生长【答案】：【解析】：第3题【单选题】糖尿病是一种激素分泌异常造成的非传染性疾病，我国患糖尿病的人数居世界首位．糖尿病发病的主要原因是( )A、生长激素分泌不足B、胰岛素分泌不足C、生长激素分泌过多D、胰岛素分泌过多【答案】：【解析】：第4题【单选题】下列关于动物社会行为特征的叙述，不正确的是( )A、成员之间有明确的分工B、有的群体中还形成等级C、群体内部往往形成一定的组织D、各成员之间都是用声音进行信息交流【答案】：【解析】：第5题【单选题】植物生长表现出向光性是由于( )A、向光一侧生长素分布多，细胞生长慢B、向光一侧生长素分布多，细胞生长快C、背光一侧生长素分布多，细胞生长慢D、背光一侧生长素分布多，细胞生长快【答案】：【解析】：第6题【单选题】通过探究蚂蚁的通讯，我们发现蚂蚁的通讯是靠( )A、气味B、表情C、舞蹈D、声音【答案】：【解析】：第7题【单选题】某校科学小组研究了“激素甲和激素乙对柳树插条生根的影响”，实验结果如下图所示，下列说法错误的是( )A、该实验的变量是激素的种类和激素的浓度B、该实验证明激素乙对柳树插条生根有抑制作用C、该实验证明激素甲对柳树插条生根有促进作用D、若探究激素甲、乙对柳树插条生根的共同影响，应设计2组实验进行对照【答案】：【解析】：第8题【单选题】屈肘时，①和②的状态分别是( )A、①收缩、②舒张B、都收缩C、①舒张、②收缩D、都舒张【答案】：【解析】：第9题【单选题】下列有关动物语言的叙述正确的是( )A、动物的“语言”就是动物之间有联系作用的声音B、动物之间交流思想、感情的信息C、动物间能传递信息的动作、声音、气味等信号D、动物的各种行为【答案】：【解析】：第10题【单选题】2005年春节晚会上，舞蹈《千手观音》征服了亿万观众的心。
2019-2020年初中八年级上册科学第3章 生命活动的调节浙教版习题精选第八十五篇
2019-2020年初中八年级上册科学第3章生命活动的调节浙教版习题精选第八十
五篇
第1题【单选题】
下列各种动物行为中，不属于学习行为的是( )
A、猴子能够表演节目
B、鹦鹉能模仿人类说话
C、警犬可以嗅出毒品
D、小鸟把金鱼当雏鸟喂养
【答案】：
【解析】：
第2题【单选题】
某人手指被开水烫后迅速缩手，该反射的神经结构和类型分别是( )
A、反射弧，先天性反射（简单反射）
B、反射弧，后天学习形成的反射（复杂反射）
C、脑，先天性反射（简单反射）
D、脊髓，后天学习形成的反射（复杂反射）
【答案】：
【解析】：
第3题【单选题】
下列关于人体生命活动或现象叙述正确的是( )
A、听觉的形成在耳蜗
B、吃梅止渴是复杂的（即条件）反射
C、肾小管重吸收形成尿液
D、幼年生长激素分泌不足可患呆小症
【答案】：
【解析】：
第4题【单选题】
下列关于内分泌腺和激素的说法中，正确的是( )
A、垂体、甲状腺、唾液腺和汗腺均属于内分泌腺
B、内分泌腺分泌的激素经导管进入血液
C、激素对人体的生理活动有着重要的调节作用
D、人类患的疾病都是激素分泌异常引起的
【答案】：
【解析】：。
2019-2020年浙教版初中八年级上册科学第3章 生命活动的调节习题精选第五十篇
2019-2020年浙教版初中八年级上册科学第3章生命活动的调节习题精选第五十篇第1题【单选题】下列关于内分泌腺的说法正确的是( )。
A、泪腺、汗腺都把分泌物排到体表，所以都属于外分泌腺B、胃腺、肠腺都把分泌物排到体内，所以都属于内分泌腺C、内分泌腺的分泌物激素，通过导管进入周围的毛细血管D、各种内分泌腺分泌的激素，都参与人体生命活动的调节【答案】：【解析】：第2题【单选题】下列生命活动中，与植物的感应性现象无关的是( )A、浸在水中的大豆种子逐渐胀大B、倒伏的韭菜自然挺立起来C、含羞草受到触动时幼叶下垂D、松树的根在水丰富一侧分布较多【答案】：【解析】：某同学进行如下的实验：将一盆A植物放在暗箱内，而将B植物放在凿了一小洞的暗箱内，如图所示。
几天后发现A植物向上生长，而B植物向小洞处弯曲生长。
这个实验说明了( )A、阳光能促进植物生长B、植物茎的生长表现出向光性C、植物进行光合作用时不需水分D、植物进行光合作用时不需光线【答案】：【解析】：第4题【单选题】当激素分泌失调时，人体会出现一些异常现象。
如幼年时生长激素分泌过多，会患( )。
A、侏儒症B、呆小症C、巨人症D、肢端肥大症【答案】：【解析】：既能分泌激素，又能分泌消化液的结构是( )A、甲状腺B、胰腺C、垂体D、肾上腺【答案】：【解析】：第6题【单选题】A、AB、BC、CD、D【答案】：【解析】：第7题【单选题】日常生活中食用加碘食盐或常吃含碘的食物，可以有效地防治( )A、侏儒症B、“大脖子病”C、佝偻病D、夜盲症【答案】：【解析】：第8题【单选题】研究植物的向性时，小金设计了如图实验：在一个广口瓶里放一些湿棉花，将浸泡过的蚕豆种子摆放在瓶壁和湿棉花之间。
将玻璃瓶放在温暖的地方，并保持湿润，放置几天，待种子长出芽和根后，将玻璃瓶横着放置1－2天。
观察种子芽和根的生长变化情况。
下列关于该实验的分析正确的是( )A、本实验的目的是研究蚕豆种子的向光性B、用浸泡过的蚕豆种子做实验，有利于蚕豆种子的萌发C、该实验主要通过比较芽与根生长的长度得出结论D、该实验证明了生长素能促进芽与根的生长【答案】：【解析】：第9题【单选题】生物都有一定的特征，下列与“植物向光生长”现象具有相同特征的是( )A、含羞草受到刺激时叶片会合拢B、蘑菇从小长大C、一猪生九仔，连母十个样D、人体出汗【答案】：【解析】：第10题【单选题】越高等的动物，学习行为越复杂，学习能力越强．下列动物中，学习能力最强的是( )A、蚯蚓B、大山雀C、鱼D、黑猩猩【答案】：【解析】：第11题【单选题】某科学家曾做了如下实验：在饲养正常蝌蚪的水中放入某种激素，发现蝌蚪提前发育成蛙，但蛙只有苍蝇大小，由此推断放入的激素是( )A、甲状腺激素B、生长激素D、胰岛素【答案】：【解析】：第12题【单选题】下列有关人体激素的叙述，错误的是( )A、激素是人体内分泌腺的分泌物B、人体内激素种类多，含量大，是调节人体生命活动的主要物质C、激素和神经系统共同调节人体生命活动D、激素直接进入血液，运往全身【答案】：【解析】：第13题【单选题】下列哪项属于人体的外分泌腺( )A、肝脏B、垂体D、胰岛【答案】：【解析】：第14题【单选题】动物的攻击行为有利于( )A、个体的生存B、种族的延续C、个体的发育D、A和B【答案】：【解析】：第15题【单选题】白蚁内部不同成员之间分工合作，共同维持群体生活，这种行为属于( )A、社会行为B、取食行为C、繁殖行为D、防御行为【答案】：【解析】：第16题【单选题】条件反射不同于非条件反射的是( )①先天性②经后天学习形成的③会消退④固定不变的⑤脊髓参与调节⑥大脑皮层参与调节A、①③⑥B、②④⑥C、②③⑤D、②③⑥【答案】：【解析】：第17题【单选题】蜂群中的工蜂在百花盛开时采集花蜜是( )A、社群行为和贮食行为B、社群行为和节律行为C、防御行为和贮食行为D、防御行为和节律行为【答案】：【解析】：第18题【单选题】通过探究蚂蚁的通讯，我们发现蚂蚁的通讯是靠( )A、气味B、表情C、舞蹈D、声音【答案】：【解析】：第19题【单选题】通过语言功能建立的条件反射应该是( )A、看到老师走上讲台，同学们马上起立向老师敬礼B、听到主人唤它的“名字”，小狗就向主人跑过来C、看到有人突然横穿马路，司机立即刹车停了下来D、听了老师讲的故事，同学们都忍不住笑了【答案】：【解析】：第20题【单选题】如图是反射弧的结构图，图中的5是( )有误A、感受器B、效应器C、神经中枢D、传出神经【答案】：【解析】：第21题【单选题】某人手指被开水烫后迅速缩手，该反射的神经结构和类型分别是( )A、反射弧，先天性反射（简单反射）B、反射弧，后天学习形成的反射（复杂反射）C、脑，先天性反射（简单反射）D、脊髓，后天学习形成的反射（复杂反射）【答案】：【解析】：第22题【单选题】某人在下雪天的时候，由于路滑不小心重重的摔了一跤，后脑勺磕在了一块石头上，起来之后眼睛看不见了，经检查眼球的结构完好无损．你知道他在摔跤以后伤了那个部位吗？( )<!--{cke_protected}{C}%3C!%2D%2DE1%2D%2D%3E-->A、大脑视觉中枢B、小脑C、脊髓D、脑干【答案】：【解析】：第23题【单选题】下列结构中属于中枢神经系统的是( )A、脑和脊髓B、脑和脑神经C、脑和脊髓及它们发出的神经D、脊髓和脊神经【答案】：【解析】：第24题【填空题】甲状腺的激素的合成需要来自食物中的______作原料。
精选2019-2020年浙教版科学八年级上册第3章 生命活动的调节第3节 神经调节习题精选第二十一篇
精选2019-2020年浙教版科学八年级上册第3章生命活动的调节第3节神经调节习题精选第二十一篇第1题【单选题】下列分类正确的是( )①大脑②树突③脑干④轴突⑤细胞体⑥脊神经A、①②④，③⑤⑥B、①③⑥，②④⑤C、①④②，③⑤⑥D、①③④，②⑤⑥【答案】：【解析】：第2题【单选题】甲乙丙三个容器里依次装有冷水、温水和热水，把左手伸入甲盆，右手伸入丙盆，过一会儿，同时拿出左右手并伸进乙盆，双手的感觉是( )A、两手都感到温热B、左手感觉热、右手感觉冷C、左手感觉冷、右手感觉热D、两手都感到温冷【答案】：【解析】：第3题【单选题】A、X-传出神经；Y-传入神经B、X-传入神经；Y-传出神经C、X-传出神经；Y-脊髓D、X-传入神经：Y-脊髓【答案】：【解析】：第4题【单选题】如图是反射弧的结构示意图，有关叙述错误的是( )A、完成膝跳反射的传导路线是1→2→3→4→5B、只要此结构完整必然出现反射活动，因为它是反射活动的结构基础C、人在睡着时，一旦有蚊子叮咬也会拍打，这是简单的反射，这是由脊髓控制完成的D、情绪激动时，在神经系统的调节下，肾上腺素通过血液循环也参与了调节人体的生命活动【答案】：【解析】：第5题【单选题】下列疾病与其它对应的原因搭配合理的是( )A、夜盲症——缺乏维生素BB、糖尿病——胰岛素分泌不足C、地方性甲状腺肿——缺钙D、侏儒症——幼年时期甲状腺激素分泌不足【答案】：【解析】：第6题【单选题】生物的生命活动调节离不开激素，关于激素，不正确的是( )A、人体内的激素是由外分泌腺分泌，并随血液循环到达全身B、“呆小症”患者，是因为幼年时甲状腺激素分泌不足C、植物会向光一侧生长是由于单侧光引起植物体内生长素分布不均匀D、用带芽和幼叶的插枝扦插容易成活，是因为芽和幼叶能产生生长素【答案】：【解析】：第7题【单选题】人体神经调节的基本方式是( )A、神经元B、反射C、反射弧D、神经冲动【答案】：【解析】：第8题【单选题】新交通法明确规定不得醉酒驾车。
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2019-2020学年度浙教版初中八年级上册科学第3章生命活动的调节习题精选第1题【单选题】2011年5月1日起，我国将醉酒驾驶纳入刑法。
对“醉酒驾驶会提高交通事故的发生率”的解释，下列说法不合理的是( )A、醉酒会使驾驶员的中枢神经系统过度兴奋B、醉酒会使驾驶员的中枢神经系统麻痹抑制C、醉酒会影响驾驶员的操作准确性和反应时间D、醉酒会伤害驾驶员消化系统中的胃和肝脏【答案】：【解析】：第2题【单选题】人体各器官产热情况如图所示。
据图分析，正常人在运动情况下主要的产热器官是( )A、脑B、内脏C、骨骼肌D、其他器官【答案】：【解析】：第3题【单选题】为研究光照对植物胚芽生长的影响，某兴趣小组做了下图所示的实验。
根据图中所示实验结果可以得出的结论是( )A、单侧光使胚芽鞘弯曲生长B、胚芽鞘尖端是感受光刺激的部位C、单侧光使胚芽鞘内生长素分布不均匀D、生长素能促进胚芽鞘向光生长【答案】：【解析】：第4题【单选题】同学们通过读书、看报、看电视等方式获得知识的过程中，需要处理大量的信息，处理这些信息的主要部位是( )A、小脑B、脊髓C、脑干D、大脑【答案】：【解析】：第5题【单选题】以下哪个不是工蚁的职责( )A、筑巢B、保卫C、喂养D、觅食【答案】：【解析】：第6题【单选题】生物圈中的动物具有许多复杂的行为，其中具有社会行为的一组是( )A、蚂蚁、蜜蜂B、蜻蜓、蝴蝶C、蝗虫、蟋蟀D、苍蝇、蚊子【答案】：【解析】：第7题【单选题】屈肘时，①和②的状态分别是( )A、①收缩、②舒张B、都收缩C、①舒张、②收缩D、都舒张【答案】：【解析】：第8题【单选题】随着饮食和生活方式的改变，我国糖尿病患者的数量呈上升趋势，糖尿病患者可以通过注射下列哪种激素进行治疗( )A、生长激素B、胰岛素C、甲状腺激素D、肾上腺素【答案】：【解析】：第9题【单选题】下列现象中属于简单反射的是( )A、司机看到红灯立即停车B、谈虎变色C、儿童看到穿白大褂的医生吓得哭D、人吃糖果时分泌唾液【答案】：【解析】：第10题【单选题】下列属于恒温动物的是( )A、蛇B、杜鹃C、蝗虫D、蜥蜴【答案】：【解析】：第11题【单选题】下列动物行为中属于社会行为的是( )A、母鸡带许多小鸡觅食B、一群觅食的麻雀C、蜜蜂的群体生活D、两性识别【答案】：【解析】：第12题【单选题】下列有关人体体温调节的叙述错误的是( )A、人体正常的体温大约是37℃B、一天中，人体的体温会随时间波动C、人体体温的调节主要依赖于神经系统和激素的共同调节D、在炎热的天气下，为了增加散热，人体皮肤血管会收缩，汗腺分泌增加【答案】：【解析】：第13题【单选题】小狗建立的“铃声——唾液分泌”反射的类型和完成该反射的神经结构分别是( )A、条件反射，反射弧B、条件反射，脊髓C、非条件反射，反射弧D、非条件反射，脊髓【答案】：【解析】：第14题【单选题】如图是反射弧的结构示意图，有关叙述错误的是( )A、完成膝跳反射的传导路线是5-4-3-2-1B、只要此结构完整必然出现反射活动，因为它是反射活动的结构基础C、人在睡着时，一旦有蚊子叮咬也会拍打，这是简单的反射，这是由脊髓控制完成的D、情绪激动时，在神经系统的调节下，肾上腺素通过血液循环也参与了调节人体的生命活动【答案】：【解析】：第15题【单选题】某人胰岛素分泌不足，可能会患上( )A、<!--{cke_protected}{C}%3C!%2D%2D%5Bif%20gte%20mso%209%5D%3E%3Cxml%3E%0A%20%3Cw%3A WordDocument%3E%0A%20%20%3Cw%3AView%3ENormal%3C%2Fw%3AView%3E%0A%20%20%3Cw%3AZoom%3E0%3C%2Fw%3AZoom%3E%0A%20%20%3Cw%3ATrackMoves%2F%3E%0A%20%20%3 Cw%3ATrackFormatting%2F%3E%0A%20%20%3Cw%3APunctuationKerning%2F%3E%0A%20%20%3C w%3ADrawingGridVerticalSpacing%3E7.8%20%E7%A3%85%3C%2Fw%3ADrawingGridVerticalSpacing %3E%0A%20%20%3Cw%3ADisplayHorizontalDrawingGridEvery%3E0%3C%2Fw%3ADisplayHorizontal DrawingGridEvery%3E%0A%20%20%3Cw%3ADisplayVerticalDrawingGridEvery%3E2%3C%2Fw%3ADis playVerticalDrawingGridEvery%3E%0A%20%20%3Cw%3AValidateAgainstSchemas%2F%3E%0A%20%2 0%3Cw%3ASaveIfXMLInvalid%3Efalse%3C%2Fw%3ASaveIfXMLInvalid%3E%0A%20%20%3Cw%3AIgnor eMixedContent%3Efalse%3C%2Fw%3AIgnoreMixedContent%3E%0A%20%20%3Cw%3AAlwaysShowPl 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