精选科学八年级上册第4章 植物的物质和能量的转化4 植物的光合作用和呼吸作用华师大版巩固辅导含答.docx
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精选科学八年级上册第4章 植物的物质和能量的转化4 植物的光合作用和呼吸作用华师大版巩固辅导含答.docx
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精选科学八年级上册第4章植物的物质和能量的转化4植物的光合作用和呼吸作用华师大版巩固辅导含答
2019年精选科学八年级上册第4章植物的物质和能量的转化4植物的光合作用和呼吸作用华师大版巩固辅导【含答案解析】九十四
第1题【单选题】
下列生物中,能进行光合作用的是()
A、猪笼草
B、熊猫
C、鱼
D、草履虫
【答案】:
【解析】:
第2题【单选题】
我市几年前种下的许多绿化树苗已逐渐长高,植株内有机物大量增多,这些有机物来自植物的()
A、呼吸作用
B、光合作用
C、蒸腾作用
D、根的吸收作用
【答案】:
【解析】:
第3题【单选题】
家庭中养鱼可以增加生活情趣、陶冶情操,养鱼时,人们喜欢在鱼缸中放一些新鲜绿色水草,主要目的是()
A、增加水中氧的含量
B、能美化环境
C、清洁鱼缸里的水
D、起到杀菌作用
【答案】:
【解析】:
第4题【单选题】
“万物生长靠太阳”,阳光和植物之间到底存在什么利益关系呢?
探究“绿叶在光下制造有机物”的实验,你还记得吗?
原来植物在光下完成了光合作用,制造了…上题说明绿叶在光下制造的有机物主要是()
A、维生素
B、淀粉
C、蛋白质
D、脂肪
【答案】:
【解析】:
第5题【单选题】
马铃薯、玉米中含有丰富的淀粉,植物体内的有机物是植物通过什么过程获得的()
A、呼吸作用
B、光合作用
C、吸收作用
D、蒸腾作用
【答案】:
【解析】:
第6题【单选题】
如图所示的实验装置探究的是()
A、叶片进行呼吸作用释放二氧化碳
B、叶片进行光合作用释放氧气
C、叶片正面和背面的气孔是否一样多
D、绿叶在光下制造有机物
【答案】:
【解析】:
第7题【填空题】
俄罗斯著名植物生理学家曾这样说:
“…它所获取的光和热,不仅养育了地球上的其他生物,而且使巨大的涡轮机旋转,使诗人笔挥舞.”请你猜猜它是______。
【答案】:
【解析】:
第8题【实验探究题】
为探究绿色植物进行光合作用的有关问题,小明选择一株盆栽的银边天竺葵作为实验材料。
实验装置如下图所示,请分析回答:
请你设计一个简单方案,以排除叶片中原有的淀粉对实验结果的影响:
______。
你的方案利用了天竺葵的哪项生理活动?
______。
将实验装置放到阳光下照射4~6小时后,同时摘下叶片A、B,利用______进行脱色处理,然后滴加碘液,观察实验结果。
叶片A绿色部分和非绿色部分的结果比较,可以证明______;叶片A绿色部分和叶片B绿色部分的结果比较,可以证明______。
若将装置中的透明塑料袋改为黑色塑料袋,同时取走固体氢氧化钠,则叶片A,B绿色部分的实验结果比较,可以证明______。
天竺葵进行光合作用所需要的水分是通过其体内的______运输的,运输水分所需要的动力来自于叶片进行______所产生的拉力。
【答案】:
【解析】:
第9题【实验探究题】
春天到了,随着气温的升高又到了播种的季节,农民伯伯在雨后或浇地后,先给地松土,然后进行播种.
某生物学习小组针对这一生活常识设计了“探究影响种子萌发的环境条件”的实验(以大豆种子为材料),实验设计见如图装置:
当他们选择2、5两个编号的种子作为一组对照实验时,他们探究的问题是______.几天后,2号种子萌发了,5号种子没有萌发,根据这一现象,他们得出的结论是______.
大豆种子能萌发成幼苗的结构部分是______.
如果探究种子萌发需要适宜的水分,应选择哪两个编号的种子做对照实验?
______
假如2号种子没有萌发,请写出一条不萌发的原因______.
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