深圳市 2018 年高三年级第二次调研考试理科综合生物部分
深圳市高三年级第二次调研考试理科综合能力测试试题参考答案

深圳市高三年级第二次调研考试理科综合能力测试试题&参考答案第一部分一、选择题:本大题共13小题,每小题6分。
在每小题给出的四个选项中,只有一项是符合题目要求的。
1.下列有关叶肉细胞代谢的说法正确的是A.叶绿体内,在类囊体上分解ATP释放能量B.叶绿体内,在基质中依靠酶催化产生O2C.线粒体内,H2O中的O可参与构成CO2D.线粒体内,H2O中的H可参与构成C6H12O62以下利用相关材料能够达到相应目的的是A.以洋葱表皮为材料,观察染色体数目B.以蓝藻和衣藻为材料,提取叶绿素C.以肺炎双球菌为材料,观察中心体D.以蛔虫受精卵为材料,观察染色体联会3.人体内肌糖原经过一系列化学反应可生成乳酸,并进入肝细胞转变成葡萄糖:葡萄糖-6-磷酸酶可催化肝耱原转化为葡萄糖。
相关说法合理的是A.胰高血糖素能抑制葡萄糖-6-磷酸酶的活性B.胰岛素能提高葡萄糖-6-磷酸酶的活性C.肌细胞中控制葡萄糖-6-磷酸酶的基因不表达D.肌糖原和肝糖原都可以直接转化为血糖4.有关植物激素的说法,合理的是A.植物激素直接参与细胞内的代谢活动B.植物的发育从根本上说是激素调节的结果C.生长素与赤霉素能够协同促进果实发育D.激素之间的相互作用不存在反馈调节5.正常情况下,DNA分子在细胞内复制时,双螺旋解开后会产生一段单链区。
DNA结合蛋白( SSB)能很快地与单链结合,防止解旋的单链重新配对,而使DNA 呈伸展状态,SSB在复制过程中可以重复利用。
下列有关推理合理的是A.SSB是一种解开DNA双螺旋的解旋酶B.SSB与单链的结合将不利于DNA复制C.SSB与DNA单链既可结合也可以分开D.SSB与单链的结合遵循碱基互补配对原则6.下列有关人类单基因遗传系谱图中,第III代患病概率最低的是(标记阴影的个体是患者,其余为正常。
)29.(10分)种子的萌发需要适宜的水分、温度和氧气等条件。
(1)水分在种子萌发过程中的主要作用有、等。
深圳市2018年高三年级第二次调研考试(含答案)(精校版)

深圳市2018年高三年级第二次调研考试英语本试卷共10页,卷面满分120分,折算成135分计入总分,考试用时120分钟。
第一部分阅读理解(共两节,满分40分)阅读下列短文,从每题所给的A、B、C和D四个选项中,选出最佳选项。
ALife experiences can show one’s “grit”(坚韧). Complex challenges early in life helpedthe following people develop skills that got them to the top of their professions.Ursula Burns, Chairwoman, VEON; Former CEO, XeroxHer family was so poor that her single mother traded office cleaning for health care.But Burns’ early gift for maths won her a scholarship and an internship at Xerox, where she would compete her way to the top. “ I'm a black lady from the Lower East Side,” she says, “Not a lot scares me.”Howard Schultz, Executive Chairman, StarbucksSchultz grew up in public housing in Brooklyn, surrounded by poverty, and was the first in his family to go to college (on a football scholarship).After training in sales, he set up the company that would later buy Starbucks. “In the course of the year I spent trying to raise money, I spoke to 242 people, and 217 of them said no.” he said.Sean Combs, CEO, Sean JohnCombs began a generation of hip-hop talent and made a lasting influence on fashion.But he story could have turned out much differently: His drug dealer father was killed when he was3. “It made me work even harder.” he recently said.Geisha Williams, CEO, PG&EHer parents fled Cuba when Williams was 5. By 7, she was her parents main translator in talks with lawyers and accountants at grocery stores they owned.The experience did help her. “I went from thinking I could be a manager to thi nking I could do something much bigger.” she told Fortune.21.Who did best in math at school?bsB. BurnsC. SchultzD. Williams22.How did the death of Combs’ father influence him?A.It made him a failure.B.He became a drug dealer.C.It made him even stronger.D.He became a hip-hopper.23. What can we learn from the passage?A.Cuba is a good place to do business.B.No one wanted to help Schultz at first.C.Poor family kids can be successful easily.D.Difficulty in life pushed Williams forward.BLooking at a pile of old photos, I couldn't help feeling rather regretful.I've never got into the habit of sorting out photos. However, it's almost a habit of mine to have photos taken thoughtlessly. Thus, photos have been piling up in my childhood to womanhood. In spite of that, those black-and-white pictures taken in my early years are rarely kept, except a few survivals regarded as antiques.The bald(秃头的) baby picture of me that I treasured, the only one left, it's now missing.Familiar faces flash one by one before my eyes. Though the world is so small and we all live in it, yet we are separated by physical and psychological distances, some smaller, some larger.With the passage of time, one cannot, regretfully relive(重温) it with the same feeling as one had in the picture.What one can get from the old photos is but a bit of the past joy.One takes pictures with different persons in different time and places.They fill one with nostalgia(怀旧) in various degrees--some more, some less, and others none.That's why one has conflicting feelings towards the old photos. Still kept with the current ones, they're even less favored than a daily-used cup, which is always close to the owner.How these pieces of thought influence me. Photos keep our images rather than our sentiment, which may not remain.The image is always there but not its owner, whom the photo can't keep ,neither can it keep the event.Of course, there are some of the photos still holding my affection, such as those taken with my family members, with favorite playmates, fellow girl-students and best friends, not only inpictures but also in my life and heart.Now, since I have learned all this, I will not allow myself to be included casually in a photo taken with others. I'll make sure that the friendship can last before I take a photo with somebody.24.Why did the writer have only a few black-and-white pictures?A. She took fewer of them.B. She took photos thoughtlessly.C. She didn't take good care of them.D. She only liked the bald baby picture.25.What can we get from the old photos according to the writer?A. All the past events.B. Some past happiness.C. All the past excitement.D. The everlasting memory.26. What does the underlined word “sentiment” in paragraph 5 probably mean?A. LookB. ThoughtC. FeelingD. Influence27. What is the writer likely to do when asked to take photos others?A. To take the photo happily.B. To refuse the request politely.C. To ignore the request casually.D. To think carefully before action.CAs an Asian country, Singapore has a reputation for being highly westernized, with English among the country’s four official languages, but a couple of signs found on local buses that have recently become a hit online may say otherwise.Quite different from English we know, the sign read, for example, “Here cannot go in” instead of “No entry”, and Here can charge phone instead of Charge phone here. This language that resembles English is called Singaporean English or Singlish.The New York Times calls Si nglish “patchwork” because Singapore consists of migrants(移民) from several countries including China, India and Malaysia, and they all speak their own versions of “English”.“Everyone who speaks it shapes it,” wrote the newspaper.For example, in Singlish, you caneasily recognize influences from Chinese, including vocabulary such as” Mee Siam” and “da bao”. Sentence structures like ” toilet where” instead of “where’s the toilet” also come from Chinese.Interesting and diverse as it may seem, the trend for S inglish is worrying Singapore’s government. It is concerned that the dialect is lowering the country’s English standard and may affect its relationship with visitors.It even started the Speak Good English Movement.Unfortunately, the problem was not solved. Instead, Singlish has boomed, especially among young people who think of it as a sign of being cool and a way of identifying themselves as Singaporean.But this does not mean that standard English is being abandoned by young people. In fact, they are much more capable than the government gives credit--they can speak both.“We are a nation good at code switching-- we know that the way we speak to friends or drivers must be different from how act at work or school,” wrote Cheryl, a Singaporean author, in Ti me magazine, “To actively urge us to give up a language that speaks to the very heart of who we are, that's so beautifully represents the melting pot of Chinese, Indians, Malaysians and Eurasians that we are, is shortsighted, surely.”28. Why does Singapore have many different versions of English?A It is made up of migrants.B. It is highly westernized.C. It is influenced by Chinese.D. It is affected by official languages.29. What is the purpose of starting the Speak Good English Movement?A.To stop the new trend.B. To better the relationship.C. To keep the English standard.D. To give the government credit.30. What do the young people think of Singlish?A. It’s interesting.B. It’s their identity.C. It’s a sign of status.D. It’s a way of code-switching.31. What can we learn from what Cheryl said?A. Different people speak different styles of Singlish.B. Singlish is a more beautiful language than others.C. People speaks Singlish only to friends and drivers.D. People can use Singlish to express themselves well.DLong before iphones, the cigarette was the companion of choice for restlessness. And long before Facebook and WeChat, it was tobacco that promised to better your social life. Now, quitting smartphones has become the new quitting smoking.Of course, technology does not yellow your teeth, cause disease or lead to cancer. But some individuals are so concerned that device addiction is damaging their mental health. In order to reduce their dependence, even in Silicon Valley, people are turning off the messages that constantly buzz for their attention, banning smartphones from the bedroom and, curiously, changing the colors on their screens to a less tempting scale of gray.The big tech companies will have to work out how to respond to this new generation of quitters. Facebook is the first to go public with its attempt, hoping its recent move can make the social network more homely.Last year the tech industry got a bad name- Big Tech-with unfortunate echoes of other industries that have faced fierce opposition, including Big Tobacco. Like them, the tech industry has to reduce concern from a new generation of activist shareholders(股东) that are questioning its role in the world. These campaigns are never as fierce as those faced by Big Tobacco. In the 1990s, socially responsible investors refused to put money in tobacco stocks.It is far difficult for investors to challenge Big Tech and hard to separate the good these companies do in the world--connecting old friends and giving space for people to share their ideas--from the bad.In the meantime, stopping using technology remains problematic. In The World Without Mind: The Existential Threat of Big Tech, Franklin Foer argues that tech should be seen in a similar way to junk food: a convenience that some reject for more continuing nutrition.So we need to do more to turn the tide. In the same way that public service announcements made smoking around your children taboo(禁忌),we can warn parents against losing themselves in their smartphones while taking care of kids.We can also create no-smartphone zones at dinner. Eventually smartphones could be banned from all public places and help us give our attention tothe people around us instead.32. How did people keep close relationships with others in the past?A. By smoking.B. By drinking.C. By phoningD. By dining out.33. Why is the tech industry called Big Tech?A. It plays a bad role in the world.B. It is as big as Big Tobacco.C. It has an unfortunate name.D. It is a giant in Silicon Valley.34. What can we infer from Franklin Foer’s argument about the tech?A. It promotes social development.B. It is still favored by some people.C. It is worse than Big Tobacco.D. It offers continuing nutrition.35. Which can be the best title for the passage?A. Creating a No Smartphone LifeB. Smartphones Enrich Our Social LifeC. Smoking Does Greater Harm Than Smartphones DoD. Quitting Smartphones Is the New Quitting Smoking第二节(共5小题;每小题2分,满分10分)根据短文内容,从短文后的选项中选出能填入空白处的最佳选项,选项中有两项为多余选项。
【高三物理试题精选】2018高三理综二模试题(深圳市带答案)

2018高三理综二模试题(深圳市带答案)
绝密★启用前试卷类型A
广东省深圳市、OH-B.Al3+、H+、SiO32-、I-
C.Fe2+、K+、NO3-、SO42-D.Fe3+、NH4+、ClO-、CO32-
9.NA为阿伏伽德罗常数。
下列说法正确的是
A.同温同压同体积的CO2和SO2所含氧原子数均为2NA
B.32gCu与S完全反应转移的电子数为NA
C.1L 10mol L-1NH4Cl与2L 05mol L-1NH4Cl溶液含NH4+数目相同
D.25℃时,pH=13的10 L Ba(OH)2溶液中含有的OH-数目为01NA 10.下列说法不正确的是新- -标 -第 -一-网
A.汽车尾气中有NOX ,主要是汽油不充分燃烧引起的
B.日用铝制品表面覆盖着氧化膜,对金属起保护作用
C.实验室常用粗锌和稀硫酸反应制取H2
D.从海水中提取溴的过程涉及氧化还原反应
11.常温下,下列有关物质的量浓度关系正确的是
A.等物质的量浓度的溶液中,水电离出的c(H+)HCl>CH3COOH B.pH相同的溶液中c(Na2CO3)<c(NaHCO3)
C.在Na2SO3溶液中c(Na+)= 2c(SO32-)+ c(HSO3-)+ c (OH-)
D.01mol L-1NaHS溶液中c(Na+)= c(HS-)
12.下列实验现象对应的结论正确的是
①气密性检查②气体性质检验③化学平衡的探究④喷泉实验
选项现象结论
A①中导管口冒气泡,手松开无现象气密性良好
B②中KMnO4溶液紫红色褪去SO2具有漂白性
C③中关闭K,气体颜色在热水中比冷水深NO2生成N2O4为吸热反应。
2018年高考全国二卷理科综合(含答案解析)

2018年普通高等学校招生全国统一考试理科综合能力测试考试时间:____分钟题型单选题多选题简答题总分得分单选题(本大题共18小题,每小题____分,共____分。
)1.下列关于人体中蛋白质功能的叙述,错误的是A. 浆细胞产生的抗体可结合相应的病毒抗原B. 肌细胞中的某些蛋白质参与肌肉收缩的过程C. 蛋白质结合Mg2+形成的血红蛋白参与O2运输,D. 细胞核中某些蛋白质是染色体的重要组成成分2.下列有关物质跨膜运输的叙述,正确的是A. 巨噬细胞摄入病原体的过程属于协助扩散B. 固醇类激素进入靶细胞的过程属于主动运输C. 神经细胞受到刺激时产生的Na+内流属于被动运输D. 护肤品中的甘油进入皮肤细胞的过程属于主动运输3.下列有关人体内激素的叙述,正确的是A. 运动时,肾上腺素水平升高,可使心率加快,说明激素是高能化合物B. 饥饿时,胰高血糖素水平升高,促进糖原分解,说明激素具有酶的催化活性C. 进食后,胰岛素水平升高,其既可加速糖原合成,也可作为细胞的结构组分D. 青春期,性激素水平升高,随体液到达靶细胞,与受体结合可促进机体发育4.有些作物的种子入库前需要经过风干处理,与风干前相比,下列说法错误的是A. 风干种子中有机物的消耗减慢B. 风干种子上微生物不易生长繁殖C. 风干种子中细胞呼吸作用的强度高D. 风干种子中结合水与自由水的比值大5.下列关于病毒的叙述,错误的是A. 从烟草花叶病毒中可以提取到RNAB. T2噬菌体可感染肺炎双球菌导致其裂解C. HIV可引起人的获得性免疫缺陷综合征D. 阻断病毒的传播可降低其所致疾病的发病率6.在致癌因子的作用下,正常动物细胞可转变为癌细胞。
有关癌细胞特点的叙述错误的是A. 细胞中可能发生单一基因突变,细胞间黏着性增加B. 细胞中可能发生多个基因突变,细胞的形态发生变化C. 细胞中的染色体可能受到损伤,细胞的增殖失去控制D. 细胞中遗传物质可能受到损伤,细胞表面的糖蛋白减少7.化学与生活密切相关。
最新-广东省深圳市2018届高三理综下学期第二次调研考

2018年深圳市高三年级第二次调研考试理科综合本试卷共12页,36小题,满分300分。
考试用时150分钟。
注意事项:1. 答卷前,考生首先检查答题卡是否整洁无缺损,监考教师分发的考生信息条形码是否正确;之后务必用0.5毫米黑色字迹的签字笔在答题卡指定位置填写自己的学校、姓名和考生号。
同时,将监考教师发放的条形码正向准确粘贴在答题卡的贴条形码区,请保持条形码整洁、不污损。
2. 选择题每小题选出答案后,用2B铅笔把答題卡上对应题目的答案标号涂黑。
如需改动,用橡皮擦干净后,再选涂其它答案,答案不能答在试卷上。
不按要求填涂的,答案无效。
3. 非选择题必须用0.5亳米黑色字迹的签字笔作答,答案必须写在答题卡各题目指定区域内相应位置上。
请注意每题答题空间,预先合理安排。
如需改动,先划掉原来的答案,然后再写上新的答案,不准使用铅笔和涂改液.不按以上要求作答的答案无效。
4. 考生必须保持答题卡的整洁。
考试结束后,将答题卡交回…相对原子质量:H 1 C 12 N 14 O 16 S 32 I 127 Cl 35.5 Al 27 Ca 40 Cu 63.5 Fe 56 K 39 Mg 24 Na 23 Zn 65 Li 7一、单项选择题(本大题16小题,每小题4分,共64分.在每小题给出的四个选项中,只有一个选项最符合题目要求,选对的得4分,多选、选错或不答的得O分.)1.图示正常情况下溶酶体所含物质及其内、外环境的pH值等,下列哪项叙述与溶酶体有关的事实不相符合A.保持pH值的稳定需要消耗三磷酸腺苷B.被溶酶体分解的产物都要排出细胞外C.能吞噬并杀死某些入侵的病菌或病毒D.其膜上具有特异性转运H+的载体蛋白2. 下列有关哺乳动物受精作用和胚胎发育的说法,不正确的是A.卵细胞内有机物分解的速率小于受精卵B. 受精过程要依赖细胞膜上受体的识别作用C. 胚胎的总体积随着受精卵的分裂而不断增大H+D. 受精卵的分裂意味着新生命的发育过程开始3.广东省与外界交往密切,气候温暖,适合生长的生物种类相对较多,使其成为全国外来入侵生物种类最多的省份之一。
2018深圳高三第二次模拟考试理科综合

高三第二次模拟考试理科综合试题―、选择题:每小题的四个选项中,只有一项符合题目要求。
1.下列哪项实验的材料可以和“观察DNA和RNA在细胞中的分布”的选材相同A.观察细胞中的叶绿体B.观察细胞中的线粒体C.观察洋葱外表皮的质壁分离D.制备细胞膜2.在细胞中,下列哪个生化反应过程需要消耗ATPA.溶酶体中大分子水解成小分子B.呼吸作用中葡萄糖分解成丙酮酸C.光反应中水分解成02和[H]D.暗反应中C3化合物的还原3.下列可以引起神经元静息电位绝对值降低的是囉一项A.增加细胞外K+浓度B.增加细胞内K+浓度C.增加细胞内Na+浓度D.降低细胞外Na+浓度4.某种南瓜矮生突变体可分为两类:激素合成缺陷型突变体和激素不敏感型突变体。
为研究某种矮生南瓜的矮生突变体属于哪种类型,研究者应用赤霉素和生长素溶液进行了相关实验,结果如图所示。
下列相关分析正确的是A.由图可看出,赤霉素能促迸正常植株茎的伸长,生长素对正常植株的作用具有两重性B.由图可以判断,该矮生南瓜突变体是生长素和赤霉素不敏感型突变体C.若两种南瓜内生长素和赤霉素的含量都很接近,则可以判断该矮生南瓜突变体是激素合成缺陷型D.正常南瓜茎的伸长对赤霉素的作用更敏感5.如图表示一片草原上的兔子和狼在一段时间内相对数量变化的趋势,下列相关分析正确的是A.甲代表狼,乙代表兔子B.狼的K值接近B点对座的数值C.兔子的K值接近C点对应的数值D.第2年,狼的数量因为缺乏食物而下降6.下图为某家族的遗传系谱图,已知Ⅲ-4号个体不携带任何致病基因,下列相关分析正确的是A.甲病为X染色体上隐性基因控制B.Ⅲ-2的致病基因只来源于Ⅰ-1个体C.Ⅳ-4同时携带两种致病基因的概率为0D.Ⅲ -3和Ⅲ-4再生一个患病男孩的概率是1/87.化学与生产、生活密切相关。
下列与化学有关的事实及其相关化学方程式的书写都正确的是选事实化学方程式项HClO+H++Cl-=Cl2↑+H2OA 家庭用的“84”消毒液与洁厕灵不能同时混合使用B 可用生石灰做工业废气脱硫剂2CaO+2SO2+O2=2CaSO4C 可用蘸硫酸的玻璃棒检验输送氨气的管道是否H++ NH3=NH4+漏气D 侯德榜用饱和食盐水、氨气、CO2 制备纯碱2NaCl + 2NH3+ CO2 + H2O=2NH4Cl + Na2CO38.下列关于有机物的叙述不正确的是A.乙酸的分子模型可表示为B.糖类、油脂、蛋白质都是高分子化合物C 新制的氢氧化铜可以鉴别乙酸、葡萄糖和乙醇D.丁酸和乙酸乙酯互为同分异构体9.设N A 为阿伏加德罗常数的值。
深圳市2018年高三年级第二次调研考试生物试题含答案

深圳市2018 年高三年级第二次调研考试理科综合生物部分1.细胞膜上分布有载体蛋白和受体蛋白等功能蛋白,载体蛋白和受体蛋白的共同特点有A.与相关物质的结合具有特异性B.相结合的物质均为小分子有机物C.均能识别细胞外来的信息分子D.其产生过程均由核糖体独立完成2.下列有关分子与细胞的叙述,正确的是A.利用重铬酸钾检测酒精时需要碱性环境B.用含有双缩脲的物质可检测蛋白质的显色情况C.用洋葱根尖分生区细胞难以观察到质壁分离现象D.低温条件下保存过程的蛋白酶催化能力会丧失3.图示最适浓度和pH 值条件下,反应物浓度对某种酶所催化的化学反应速率的影响,有关分析正确的是A.A 点时,适当提高温度可以提高反应速率B.B 点时,酶的数量限制了反应速率的提高C.B 点时,影响反应速率的条件主要是pH 值D.C 点时,酶活性和化学反应速率升至最大值4.科研人员将禁食一段时间的实验小鼠随机分为甲、乙、丙、丁4组,向甲、乙、丙3组腹腔注射等量胰岛素溶液,丁组腹腔注射生理盐水,一段时间后,甲、乙、丙三组出现反应迟钝、嗜睡等症状,而丁组未出现这些症状,有关说法错误的是A.通过该实验能探究胰岛素的生理作用B.直接给乙注射葡萄糖有利于缓解症状C.给丙注射胰高血糖素有利于缓解症状D.给丁注射胰岛素后能大幅度增加尿量5.将休眠状态的糖枫种子与湿沙混合后放在0~5℃的低温下1~2 个月,就可以使种子提前萌发。
图示糖枫种子在处理过程中各种激素含量的变化。
由此可推测A.脱落酸和细胞分裂素对种子的萌发都起促进作用B.脱落酸和赤霉素含量相等时细胞分裂素含量较高C.图中3种激素在不同的时间段都可能发挥一定作用D.先使用细胞分裂素和脱落酸有利于种子提早萌发6.已知豌豆种子的黄色(Y)对绿色(y)、高杆(D)对矮杆(d)是显性,这两对性状独立遗传。
用双亲为黄色高杆和绿色矮杆的豌豆植物杂交,得F1,选取F1 的数量相等的两种植株进行测交,产生的后代数量相同,测交后代表现型及比例为:黄色高杆:绿色高杆:黄色矮杆:绿色矮杆=1:3:1:3。
生物-广东省深圳市高级中学2018届高三下学期周练理科综合试题(3.11)

广东省深圳市高级中学2018届高三下学期周练理科综合试题(3.11)1.生物膜上常附着某些物质或结构以与其功能相适应,下列相关叙述正确的是()A.内质网和高尔基体膜上附着核糖体,有利于对多肽链进行加工B.叶绿体内膜上附着光合色素,有利于吸收、传递和转化光能C.细胞膜上附着ATP水解酶,有利于主动吸收某些营养物质D.线粒体内膜上附着与细胞呼吸有关的酶,有利于分解丙酮酸2. 洋葱是生物学中常用的实验材料,下列相关叙述中正确的是()A. 洋葱的管状叶可用于观察液泡的大小和位置、叶绿体的形态和分布B. 选用洋葱根尖分生区细胞可在光学显微镜下观察细胞中的基因突变C. 紫色洋葱鳞片叶外表皮细胞可用来观察DNA和RNA在细胞中的分布D. 紫色洋葱鳞片叶内表皮细胞是用来观察细胞质壁分离的最适材料之一3. 流感病毒的结构包括包膜、基质蛋白以及核心。
包膜是磷脂双分子层,其中有血凝素和神经氨酸酶,前者可协助病毒导入宿主细胞,后者能使病毒从宿主细胞中释放;核心包含单链RNA以及复制RNA所必需的酶。
下列相关说法正确的是()A. 流感病毒RNA复制的互补链也是病毒的遗传物质B. 血凝素能使流感病毒的细胞膜和宿主的细胞膜融合C. 流感病毒遗传物质复制和蛋白质合成所需的酶来自宿主细胞D. 阻断神经氨酸酶的活性可用于研制抗流感的新药4.某科研小组调查了高原鼠兔有效洞穴密度对某群落中主要植物种群密度的影响,结果如图所示。
下列相关叙述,错误的是()A.高山蒿草的种群密度下降,说明该群落的丰富度下降B.采用样方法进行随机取样调查高原鼠兔有效洞穴密度C.结果显示,有效洞穴密度对达乌里秦艽密度几乎无影响D.高原鼠兔种群数量增长会改变该群落的演替速度和方向5.研究发现,浮萍可通过和其根部微生物形成的耦合系统分解水中的有机污染,浮萍还能分泌有关物质促进水中藻类植物的叶绿素的分解,并覆盖在水体表面,从而减少了水华的发生。
以下推论正确的是()A.浮萍与藻类之间属于竞争关系,主要通过竞争水和无机盐来抑制藻类生长B.浮萍能净化有机污水,所以浮萍既是分解者又是生产者C.浮萍降低了水华的发生属于生物多样性的直接价值,该种价值小于它的间接价值D.为了监测水华的发生,可采用抽样检测法对藻类数量变化进行研究6.下图为某单基因遗传病的家系图,由第Ⅰ代至第Ⅲ代的生育过程中没有发生基因突变。
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深圳市2018 年高三年级第二次调研考试
理科综合生物部分
1.细胞膜上分布有载体蛋白和受体蛋白等功能蛋白,载体蛋白和受体蛋白的共同特点有
A.与相关物质的结合具有特异性
B.相结合的物质均为小分子有机物
C.均能识别细胞外来的信息分子
D.其产生过程均由核糖体独立完成
2.下列有关分子与细胞的叙述,正确的是
A.利用重铬酸钾检测酒精时需要碱性环境
B.用含有双缩脲的物质可检测蛋白质的显色情况
C.用洋葱根尖分生区细胞难以观察到质壁分离现象
D.低温条件下保存过程的蛋白酶催化能力会丧失
3.图示最适浓度和p H 值条件下,反应物浓度对某种酶所催化的化学反应速率的影响,有关分析正确的是
A.A 点时,适当提高温度可以提高反应速率
B.B 点时,酶的数量限制了反应速率的提高
C.B 点时,影响反应速率的条件主要是p H 值
D.C 点时,酶活性和化学反应速率升至最大值
4.科研人员将禁食一段时间的实验小鼠随机分为甲、乙、丙、丁4组,向甲、乙、丙3组腹腔注射等量胰岛素溶液,丁组腹腔注射生理盐水,一段时间后,甲、乙、丙三组出现反应迟钝、嗜睡等症状,而丁组未出现这些症状,有关说法错误的是
A.通过该实验能探究胰岛素的生理作用
B.直接给乙注射葡萄糖有利于缓解症状
C.给丙注射胰高血糖素有利于缓解症状
D.给丁注射胰岛素后能大幅度增加尿量
5.将休眠状态的糖枫种子与湿沙混合后放在0~5℃的低温下1~2 个月,就可以使种子提前萌发。
图示糖枫种子在处理过程中各种激素含量的变化。
由此可推测
A.脱落酸和细胞分裂素对种子的萌发都起促进作用
B.脱落酸和赤霉素含量相等时细胞分裂素含量较高
C.图中3种激素在不同的时间段都可能发挥一定作用
D.先使用细胞分裂素和脱落酸有利于种子提早萌发
6.已知豌豆种子的黄色(Y)对绿色(y)、高杆(D)对矮杆(d)是显性,这两对性状独立遗传。
用双亲为黄色高杆和绿色矮杆的豌豆植物杂交,得F1,选取F1 的数量相等的两种植株进行测交,产生的后代数量相同,测交后代表现型及比例为:黄色高杆:绿色高杆:黄色矮杆:绿色矮杆=1:3:1:3。
下列说法不正确的是
A.双亲的基因型可能是Y yDd 和y ydd
B.上述F1 用于测交的个体基因型是Y yDd 和y yDd
C.上述F1 用于测交的个体自交,后代表型比为9:3:15:5
D.若F1 的所有个体自交,产生的后代中杂合子有4种
29.(10 分)将甲细菌提取物(含A、B、C、D 四种有机物的混合物)和活的乙细菌混合培养一段时间后,从培养基中分离出了活的甲细菌。
在无法对上述四种物质进行分离和提纯的前提下,为确定A~D 中是哪种物质能使乙细菌转化为甲细菌,请根据题意设计相关实验,要求写出实验设计思路、预期结果及结论。
(1)设计思路。
(2)预期结果。
(3)结论。
30.(10 分)不同温度和持续时间对大棚豌豆苗细胞代谢有不同程度的影响。
请回答。
(1)光照和CO2 浓度等条件适宜,持续低温处理后,叶片内蔗糖合成量明显减少。
其可能的原因是。
(2)温度对豌豆苗的有氧呼吸有很大影响。
当从25℃降到0℃并持续3小时后,有氧呼吸速率变化趋势是。
当温度为60℃,持续5小时后,豌豆苗的呼吸速率为零,原因
是。
(3)探究黑暗条件下温度和持续时间对豌豆苗C O2 的产生量影响的一组对照实验种,请设计一个表格用于记录相关数据。
(注:温度为15℃和35℃;培养时间为5h 和10h)。
31.(8 分)科研人员以大鼠神经元为材料,研究细胞外某物质(X)对突触传递功能的影响。
(1)在突触前神经元上给予一个电刺激时,产生传至突触小体,引起神经递质释放,导致突触后膜电位变化。
一般地说,神经递质与激素在发挥作用时的共同点是。
(2)Glu 是大鼠神经元的一种神经递质,科研人员分别用G lu 受体抑制剂、物质X处理离体培养的大鼠神经元,检测突触后膜电位变化,结果如图所示。
结果表明,X 对突触传递所起的作用
是。
(3)科研人员用G lu 和G lu+X 分别处理突触后神经元,检测发现两组突触后神经元的电位变化无差异.由此推测X对(结构)没有直接的作用。
32.(11 分)蜜蜂中工蜂和蜂王体细胞染色体数为32 条(工蜂没有繁殖能力),雄蜂是由卵细胞发育的,体细胞染色体数为16 条。
其黑色和褐色分别由基因A、a 控制,细毛和粗毛分别由基因B、b 控制。
某蜂王产生的后代雄蜂中,黑色细毛、黑色粗毛、褐色细毛、褐色粗毛四种表现型的数量比为1:1:1:1。
请回答相关问题。
作答时,不考虑基因突变和染色体变异。
(1)根据上述两对基因推测,该蜂群个体的基因型最多有种。
(2)该蜂王的基因型为,卵细胞发育成雄蜂过程中,经历了过程。
其产生比数相等的四种雄蜂需要满足的条件包括。
(3)推理:基因型为Aabb 和aaBb 的蜂王,产生的卵细胞种数及比例均为。
请写出验证该推理的实验设计思路。
37.【生物——选修1:生物技术实践】(15 分)番茄红素是一种脂溶性色素,可以从番茄皮中提取,还可以利用藻类、霉菌及酵母发酵生产。
能够产生番茄红素的微生物包括能自身合成番茄红素的革兰氏阴性菌、三孢布拉氏霉菌和基因工程菌。
大多数革兰氏阳性菌都对青霉素敏感,而革兰氏阴性菌则对青霉素不敏感但对链霉素敏感。
(1)从番茄皮中提取番茄红素常采用萃取的方法而不用蒸馏法,理由是;萃取常用的有机溶剂为石油醚、乙醚而不用乙醇,最可能的原因是。
(2)为获得能够产生番茄红素的革兰氏阴性菌,首先要配置加入了的培养基,该培养基的功能性质是,通常用固体培养基进行培养,原因是。
(3)在接种之前要随机选取若干灭菌后的平板,先培养一段时间的目的是。
(4)平板划线法总是从上一次末端开始划线的理由是。
38.【生物——选修3:现代生物技术】(15 分)依据复制与宿主菌相关程度不同,细菌中的质粒分松散型质粒和严谨型质粒。
当宿主菌蛋白质合成停止时,严谨型质粒D NA 复制随之停止,松散型质粒D NA 复制仍可进行。
(1)通常选用松散型质粒作为基因工程载体,原因是。
(2)细菌体内限制酶不剪切该细菌本身的D NA,这是在长期的进化中形成了一套完善的,但能对外源DNA 进行降解,有利于。
事实上,上述细菌仍允许部分异源DNA 进入体内,其意义是。
(3)转化是指。
在培育转基因荧光海马时发现“转化”不成功,原因可能是。
(4)人们已经认识到,从微生物到人类都共用一套遗传密码,这一事实为研究基因工程提供了什么启示:。