优课网
首页
数学
语文
英语
化学
物理
政治
历史
生物
首页
> 某同学利用下图中的装置进行酵母菌厌氧呼吸实验,步骤为:①取10%葡萄糖溶液30mL注入三角瓶中,置于35℃水浴中预热。②取干酵母3g,放入15mL、35℃的温水中化开后,倒入三角瓶中,-高二生物
某同学利用下图中的装置进行酵母菌厌氧呼吸实验,步骤为:①取10%葡萄糖溶液30mL注入三角瓶中,置于35℃水浴中预热。②取干酵母3g,放入15mL、35℃的温水中化开后,倒入三角瓶中,-高二生物
题目简介
某同学利用下图中的装置进行酵母菌厌氧呼吸实验,步骤为:①取10%葡萄糖溶液30mL注入三角瓶中,置于35℃水浴中预热。②取干酵母3g,放入15mL、35℃的温水中化开后,倒入三角瓶中,-高二生物
题目详情
某同学利用下图中的装置进行酵母菌厌氧呼吸实验,步骤为:
①取10%葡萄糖溶液30mL注入三角瓶中,置于35℃水浴中预热。
②取干酵母3g,放入15mL、35℃的温水中化开后,倒入三角瓶中,充分振荡摇匀。
③迅速向混合液表面滴加一薄层液体石蜡。用带玻璃导管的橡皮塞密封瓶口,使玻璃导伸入右面试管的溶液底部。
④几分种后,观察实验结果。
请回答下列问题:
(1)用液体石蜡密封液面的目的是_________;三角瓶中加入葡萄糖溶液的目的是__________。
(2)试管中有气泡出现,石灰水_________;打开瓶塞,可以闻到酒精的气味,产生酒精的总反应式__________,此过程在酵母细胞的__________中完成。
题型:读图填空题
难度:中档
来源:0101 期中题
答案
(1)为酵母菌提供无氧环境 为酵母菌提供呼吸作用的原料
(2)变混浊
细胞质基质
上一篇 :
阅读下面短文,掌握其大意,然后从
下一篇 :
“Confidence” is probably o
搜索答案
更多内容推荐
In a cab, a woman seemed in such a hurry.She constantly rushed the cab driver to drive quickly.She w
I had a very special teacher in high school many years ago whose husband died suddenly of a heart at
When I was young I wanted to be a model,so when a national contest was staged,I convinced my parents
My brother and I were in Orlando Florida to witness our first Space Shuttle Launch. The Discovery wa
下列实验中,细胞处于生活状态的有①探究酵母菌细胞呼吸的方式②观察植物细胞的有丝分裂③恩吉尔曼用水绵观察光合作用的场所④观察DNA和RNA在细胞中的分布⑤用黑藻观察叶绿体的形-高一生物
Recent studies show that only one out of three people have strong and healthy self-confidence. That
More than a third of the babies born this year could receive a 100th birthday message from whoever h
The other day when I was passing a clothing store, I fell in love with a skirt. I knew it would suit
When Joan gave birth to the first boy in her family in three generations, she and her husband were o
某同学利用下图中的装置进行酵母菌无氧呼吸实验:步骤为:①取10%葡萄糖溶液30mL注入三角瓶中,置于35℃水浴中预热。②取干酵母3g,放入15mL、35℃的温水中化开后,倒入三角瓶中,-高二生物
两个生物兴趣小组分别对酵母菌细胞呼吸方式进行了如下的探究实验。请据题分析作答:(1)请根据实验目的选择装置序号,并按照实验的组装要求排序(装置可重复使用)。有氧条件下的-高三生物
下图是探究酵母菌呼吸作用方式的实验装置。以下说法中错误的是[]A.装置一中NaOH的作用是吸收CO2B.提取装置二中D处液体检测是否有酒精生成C.装置二中D瓶应先封口一段时间后,-高三生物
Long long ago, a circle missed one piece of its own. The circle wanted to be whole, so it went aroun
Jobs and work do much more than most of us realize to provide happiness and contentment.We're a
I was at the post office early that morning, hoping to be in and out in a short while. Yet, Imyself
两个生物兴趣小组分别对酵母菌细胞呼吸方式进行了如下的探究实验。请据题分析作答:(1)甲兴趣小组想探究的具体问题是:酵母菌是否在有氧、无氧条件下均能产生CO2。现提供若干套-高三生物
Run freely ——A lesson about CourageOne afternoon,many years ago,I went to pick up my mother from wor
III. 阅读 (共两节,满分40分)第一节:阅读理解(共15小题;每小题2分,满分30分)阅读下面短文,从每题所给的A、B、C和D项中选出最佳选项,并在答题卡上将该项涂黑。In 1993,-高一英语
A few months ago as I wandered through my parents’ house,the same house I grew up in,I had a sudden,
阅读下面短文, 从短文后所给的四个选项(A、B、C、D)中,选出可以填入空白处的最佳选项。Recently I understood the true meaning of love. That wo
One summer day my father sent me to buy wire for our farm. At 16,I liked ____ better than driving ou
Now, I want to start with a question: When was the last time you were called childish? For kids like
Have you ever noticed that the more you have the more you want? Let’s face it. Thinking our life is
回答下列有关酵母菌的问题:(1)酵母菌以葡萄糖为呼吸底物,在某O2浓度条件下,测得一定时间内,CO2释放量为VxmL,O2吸收量为VymL。①.若Vx>Vy,表明酵母菌进行细胞呼吸的方-高三生物
Maybe you've lost your job.Maybe you didn't get the ____ in your job.Maybe your sweetheart
My job was to make classroom observations and encourage a training program that would enable student
阅读理解。 Everyone has good days and bad days. Sometimes, you feel as if you're on top of the world
某生物兴趣小组利用图Ⅰ所示装置(橡皮塞上的弯管为带有红色液滴的刻度玻璃管),探究酵母菌的细胞呼吸类型。(1)想得到实验结论还必须同时设置对照实验,请问对照实验装置(假设-高一生物
为了探究酵母菌细胞呼吸的方式,某同学将实验材料和用具按如图所示安装好。以下关于该实验的说法,不正确的是[]A.甲、乙组实验探究的分别是酵母菌在有氧、无氧条件下的呼吸方-高三生物
How to Be a WinnerSir Steven RedgraveWinner of 5 Olympic Gold Medals“In 1997 I was found to have dev
Mark Twain said that “habit is habit, and not to be flung(扔) out the window by anyone, but coaxed (劝
On the night of November 14, 1978,a six-year-old Korean boy was flying to the United States. All he
阅读下面短文,从短文后所给的四个选项中,选出可以填入空白处的最佳选项,并在答题卡上将该项涂黑Long long ago, a child was ready to be born. So one da
How do you design a pay plan that motivates people to do their best work? A new study by three Harva
Starting a new book is a risk, just like falling in love. You have to ____ to it. You open the pages
Tears went out of my eyes when I talked to my parents on the phone. What were they doing when I them
I moved from Chicago to Brooklyn in July of 2010,just in time to watch my mother die. Our parents we
Who is there among us who hasn’t dreamed of having his or her own small (maybe , several years later
下图是探究酵母菌细胞呼吸方式的实验装置。以下说法中正确的是[]A.两个装置均需要在黑暗条件下进行B.装置乙在Ⅲ处可检测到有酒精生成C.装置乙中应让Ⅱ先放置一会再与Ⅲ连接D.装-高三生物
I used to be a very selfcentered person, but in the past two years I have really changed.I have
The person I admire most is not famous at all, yet in my mind his achievements are as important as t
下图是探究酵母菌呼吸作用方式的实验,以下说法不正确的是[]A.实验前必须进行装置的气密性检验B.实验前D瓶应封口放置一段时间后再与E瓶连接C.实验前应做预实验以确定酵母菌的-高三生物
阅读理解。 Beauty has always been regarded as something admirable. Almost everyone thinks that attractive
The summer beach season is prime time for shark attacks. It seems like sharks are attacking all the
Rented BoyfriendsTaobao. com, China's largest online marketplace, is never short of bizarre off
Growing older is unavoidable while growing up is optional. These words have been passed on in the lo
完形填空 How often one hears children wishing they were grownups,and old people wishing young again.Each
In a moment of personal crisis, how much help can you expect from a New York taxi driver? I began st
Home to me means a sense of familiarity and nostalgia(怀旧).It’s fun to come home.It looks the same.It
We always want what we cannot have. When we're young, we want to stay out late, have romantic r
返回顶部
题目简介
某同学利用下图中的装置进行酵母菌厌氧呼吸实验,步骤为:①取10%葡萄糖溶液30mL注入三角瓶中,置于35℃水浴中预热。②取干酵母3g,放入15mL、35℃的温水中化开后,倒入三角瓶中,-高二生物
题目详情
①取10%葡萄糖溶液30mL注入三角瓶中,置于35℃水浴中预热。
②取干酵母3g,放入15mL、35℃的温水中化开后,倒入三角瓶中,充分振荡摇匀。
③迅速向混合液表面滴加一薄层液体石蜡。用带玻璃导管的橡皮塞密封瓶口,使玻璃导伸入右面试管的溶液底部。
④几分种后,观察实验结果。
请回答下列问题:
(2)试管中有气泡出现,石灰水_________;打开瓶塞,可以闻到酒精的气味,产生酒精的总反应式__________,此过程在酵母细胞的__________中完成。
答案
(2)变混浊