广西河池市高级中学2017-2018学年高二上学期期末考试生物试题

适用年级:高二
试卷号:315581

试卷类型:期末
试卷考试时间:2018/2/10

1.非选择题(共2题)

1.
油菜果实发育所需的有机物主要来源于果皮的光合作用。

(1)油菜果皮细胞内通过光合作用固定CO2的细胞器是__________。光合作用产生的有机物主要以葡萄糖的形式运输至种子。
(2)种子细胞内的葡萄糖浓度比细胞外高,说明种子细胞吸收葡萄糖的跨(穿)膜运输方式是_________________,该过程需要_______________的协助。
(3)图甲表示在适宜条件下油菜果实净光合速率与呼吸速率的变化。分析可知,第24天的果实总光合速率________(填“大于”或“小于”)第12天的果实总光合速率。第36天后果皮逐渐为黄,原因是叶绿素含量减少而________________(填色素名称)的含量基本不变。叶绿素含量减少使光反应变慢,导致光反应供给暗反应的__________和__________减少,光合速率降低。
(4)图乙表示油菜种子中储存有机物含量的变化。第36天,种子内含量最高的有机物可用_______染液检测;据图分析,在种子发育过程中该有机物由________________转化而来。
2.
南瓜的遗传符合孟德尔遗传规律,请分析回答下面的问题。
(1)以能稳定遗传的南瓜品种长圆形果和扁盘形果为亲本杂交,子一代均为扁盘形果。可据此判断,_______________为显性。 
(2)若上述性状由一对等位基因(A、a)控制,则杂交得到的子一代自交,预测子二代的表现型及其比例应该是________________。 
(3)实际上该实验的结果是:子一代均为扁盘形果,子二代出现性状分离,表现型及其比例为扁盘形∶圆球形∶长圆形=9∶6∶1。依据实验结果判断,南瓜果形性状受_______对基因的控制,符合基因的____________定律。
(4)若用测交的方法检验对第(3)小题的实验结果的解释是否正确,请写出亲本的基因型______________,预测测交子代表现型及比例是_______________________________。

2.单选题(共6题)

3.
下列关于淀粉、脂肪、蛋白质和核酸的叙述,正确的是
A. 都能被相应酶水解    B. 都含有C、H、O、N这四种元素
C. 都是脂溶性物质    D. 都是人体细胞中的能源物质
4.
细胞的膜蛋白具有物质运输、信息传递、免疫识别等重要生理功能。下列图中,可正确示意不同细胞的膜蛋白及其相应功能的是
A. B. C.    D.
5.
如图1是某生物的一个初级精母细胞,图2是该生物的五个精细胞。最可能来自同一个次级精母细胞的是(   )
A.①和②B.②和④C.③和⑤D.①和④
6.
一杂交后代表现型有4种,比例为3:1:3:1,这种杂交组合为(   )
A.Ddtt×ddttB.DDTt×ddTt
C.Ddtt×DdTtD.DDTt×DdTT
7.
双亲表现正常,却生了一个患苯丙酮尿症的女儿和一个正常的儿子。那么这对夫妇再生一个正常的儿子且不携带致病基因的概率是(  )
A.1/8B.1/4C.1/3D.3/4
8.
一般情况下,下列各项能用2n表示的是(  )
A.一个DNA 分子复制n次后所产生的脱氧核苷酸链数
B.含有n个碱基对的双链DNA分子的种类数
C.具有n对等位基因(分别位于n对同源染色体上)的杂合子自交后代的表现型种类数
D.基因型为Aa的植物连续自交n代后杂合子的比例

3.选择题(共1题)

9.任务型阅读

    Do you remember the last time you read a book, or a magazine? Is checking e-mails or updating microblog your daily reading habit? If you're one of those who don't make a habit of reading regularly, you might be really out.{#blank#}1{#/blank#}

    Stress Reduction

    No matter how much pressure you have at work, in your personal relationships, or other issues in daily life, it all just slips away when you lose yourself in a great story.{#blank#}2{#/blank#}

    Knowledge

    Everything you read fills your head with new information, and you never know when it might come into use.{#blank#}3{#/blank#}Besides, you might lose everything else—your job, your money, even your health, but knowledge can never be taken from you.

    Vocabulary Expansion

    {#blank#}4{#/blank#} As a result, this will gradually enlarge your everyday vocabulary. Then you might become more knowledgeable and well-spoken, which can increase your self confidence and even help you get promotions more quickly.

    Better Writing Skills

    Exposure to well-written work has a great effect on your own writing. In other words, writing styles of other authors will influence your own work.{#blank#}5{#/blank#}

    Now that reading has so many benefits, step away from your computer and go hunting for something new to read!

A. Here are some benefits of reading.

B. Here are some suggestions for your health.

C. The more you read, the more words you gain exposure to.

D. This goes hand-in-hand with the expansion of your vocabulary.

E. A well-written novel can bring you pleasure, and allow you to relax.

F. The more knowledge you have, the better-equipped you are for your life.

G. That is why beginners always learn how to write by reading the works of others.

试卷分析
  • 【1】题量占比

    非选择题:(2道)

    单选题:(6道)

    选择题:(1道)

  • 【2】:难度分析

    1星难题:0

    2星难题:0

    3星难题:0

    4星难题:0

    5星难题:0

    6星难题:5

    7星难题:0

    8星难题:3

    9星难题:0