在啤酒生产过程中，发酵是重要环节。生产过程大致如下：将经过灭菌处理的麦芽汁充氧，拌入啤酒酵母菌菌种后输入发酵罐。初期，酵母菌繁殖速度加快，产生白色泡沫，溶解氧逐渐-高二生物

更多内容推荐

• 下列过程存在无氧呼吸的是[]A．植物叶片在光下放出O2B．动物细胞内的糖分解为H2O和CO2C．酵母细胞不产酒精的呼吸过程D．苹果贮藏期间果肉积累酒精-高二生物
• When I was about 10, I was walking down the street with my mother. She stopped to speak to Mr. Lee.
• The riches in the world are not found in the famous gold and diamond mines，where many men and women
• While attending a conference, I returned to my hotel room late one evening. The overhead light outsi
• I am a journalist in America.When reporting a story，I sometimes need to find a ____ kind of person—s
• Many Tuesday mornings, I have coffee with my father. Although my father is a man of few words, I rea
• Tail SpinTwo dolphins race around in a big pool in the Ocean Park. The smaller dolphin, Grace, shows
• 2005年7月，台风“海棠”引起连续暴雨，影响苏北沿海地区，造成玉米植株较长时间进行无氧呼吸而导致大面积死亡，原因是[]A．产物酒精使蛋白质变性，细胞死亡B．无氧呼吸产生的热-高一生物
• Please excuse me if I’m a little sad today because Mark is leaving．You probably don’t know Mark，but
• 下列装置中的鲜奶最容易变酸的是[]A．B．C．D．-高二生物
• 阅读下面短文，掌握其大意，然后从1~15各题所给的A、B、C和D项中，选出最佳选项，并在答题卡上将该项涂黑。 I have been blessed with the opportunity in m
• I used to live selfishly, I should admit. But one moment changed me.I was on my lunch break and had
• My mother has been a true inspiration to me and changed the way I look at life. Since my birth she h
• In this life, what did you miss?The wife asked the husband when she was 25. Despondently, the husban
• A culture’s values can be mirrored by its humor. Humor has been evaluated by many great minds such a
• 一运动员正在进行长跑锻炼，从他的大腿肌细胞中检测到3种化学物质，其浓度变化如下图所示，图中P、Q、R三条曲线依次代表[]A．O2、CO2、乳酸B．乳酸、CO2、O2C．CO2、O2、乳酸D．-高一生物
• 酵母菌是兼性厌氧微生物，在有氧和无氧条件下均能生长。如果向培养酵母菌的葡萄糖悬浊液中通入空气，在短时间内发生的变化是①乙醇的产量增加②乙醇的产量降低③葡萄糖消耗下降-高二生物
• 某兴趣小组在室温下进行了酵母菌无氧呼吸的探究实验(如图)。下列分析错误的是[]A．滴管中冒出的气泡是反应产生CO2的结果B．试管中加水的主要目的是制造无氧环境C．若试管中的水-高三生物
• Mark Twain said that "habit is habit, and not to be flung（扔） out the window by anyone, but coax
• In the process of my growing up I cannot remember hearing the words ‘‘I love you” from my father．Whe
• My son Tom taught me a beautiful lesson today. He is three years old and it is amazing watching him
• Some years ago, writing in my diary used to be a usual activity.I would return from school and spend
• 水稻在育秧期间，如长期被水淹，会导致烂种烂秧。其原因是[]A．细胞吸水过多B．细胞缺氧，呼吸停止C．细胞无氧呼吸产生乳酸中毒D．细胞无氧呼吸产生酒精中毒-高一生物
• (2014·蚌埠市高三第三次教学质量检查考试)Some years ago when I was in my second year in university，I heard Salome Bey
• I was out late watching a movie with a friend in Georgetown．By the time the ended，it was 2 a．m．We w
• 下列关于呼吸作用的叙述，正确的是[]A．无氧呼吸的终产物是丙酮酸B．有氧呼吸产生的[H]在线粒体基质中与氧结合生成水C．无氧呼吸不需要O2的参与，该过程最终有[H]的积累D．质量相-高三生物
• For a long time I saw happiness as a huge banner (旗帜) across the finish line of a long race.I felt t
• Have you ever heard the saying “If you want a friend, be one”?Here is how a new teacher made friends
• 下列关于人体内有氧呼吸和无氧呼吸的比较，正确的是[]A．二氧化碳只是有氧呼吸的产物B．葡萄糖只能作为有氧呼吸分解的底物C．还原氢只在有氧呼吸过程中产生D．无氧呼吸的两个阶段-高三生物
• My daughter and I went out for some shopping．While I was waiting to ，my daughter asked if she could
• September is an exciting month in every college freshman’s life. For many, it’s the first time that
• 一密闭容器中加入葡萄糖溶液和酵母菌，1h后测得该容器中O2减少24mL，CO2增加48mL，则在1h内酒精发酵所消耗的葡萄糖量是有氧呼吸的[]A．1/8倍B．1/2倍C．2倍D．3倍-高二生物
• (2013·南通模拟) “It is never too late and you are never too old to start something new！”says Englishtown
• It is a true story behind a well­known piece of art.In a village near Nuremberg lived a family w
• When I was a small boy my family was very poor. My father always used his savings to my mother to vi
• Any day we wish；we can discipline ourselves to change it a11．Any day we wish；we can open the book th
• My friend Tom came across an accident when driving in darkness. His legs were so hurt that he couldn
• There are going to be moments in life when you must make very important decisions. You will find man
• 人体在剧烈运动时，肌肉处于暂时相对缺氧状态，葡萄糖的消耗量剧增，但产生的ATP没有明显增加。这是因为[]A．机体产热增加，能量以热能的形式散失了B．葡萄糖分解不彻底，能量-高三生物
• 有一瓶混有酵母菌的葡萄糖培养液，当通入不同浓度的氧气时，其产生的C2H5OH和CO2的量如表所示。通过对表中数据分析可得出的结论是[]A．氧浓度为a时酵母菌有氧呼吸速率等于无氧-高二生物
• On a cool November afternoon in Fleming Island, Florida, Melissa Hawkinson, 41, was driving her five
• I lost my sight when I was four years old by falling off a box car in a goods yard in Atlantic City
• One sunny afternoon，a sevenyearold girl went for a walk.She crossed a large area of grassland into
• 下列有关细胞呼吸的叙述中，错误的是[]A．蛔虫进行无氧呼吸B．哺乳动物成熟的红细胞只能进行无氧呼吸C．长跑时，人体产生的CO2是有氧呼吸和无氧呼吸的共同产物D．马铃薯块茎进行-高一生物
• A couple were having a wedding. All of their friends and family came to see the lovelyand all had a
• What is intelligence anyway? When I was in the army I_____an intelligence test that all soldiers too
• 酵母菌广泛用于发酵，为验证酒精发酵的产物，某研究小组设计了如图装置。1号、2号试管中均加入3mL蒸馏水和少许0.1%BTB溶液至蓝绿色(水为较强酸性时，BTB液呈黄色)。下列有关-高三生物
• Growing up, I remember my father as a silent, serious man—not the sort of person around whom one cou
• Dear XXX,As we drove off from Columbia, I wanted to write a letter to you to tell you all that is on
• According to a recent article in The Wall Street Journal, we might all be braggarts(大话王) in this com