细胞生物学考试复习

1、细胞中含有DNA的细胞器有 ：A线粒体 B叶绿体 C细胞核 D质粒细胞核主要由 组成。 A核纤层与核骨架 B核小体 C染色质和核仁 D核被膜 在内质网上合成的蛋白质主要有 ：A 需要与其他细胞组分严格分开的蛋白B 膜蛋白C 分泌性蛋白D需要进行修饰的蛋白细胞内能进行蛋白质修饰和分选的细胞器有 ：A线粒体 B叶绿体 C内质网 D高尔基体微体中都含有 ：A氧化酶 B酸性磷酸酶 C琥珀酸脱氢酶 D过氧化氢酶各种水解酶之所以能够选择性地运入溶酶体是因为他们具有 ：AM6P标志 B导肽 C信号肽 D特殊氨基序列溶酶体的功能有 ： A细胞内消化 B细胞自溶 C细胞防御 D自体吞噬线粒体内膜的标志酶是A苹果

2、酸脱氢酶 B细胞色素C氧化酶 C腺苷酸激酶 D单胺氧化酶染色质由以下成分构成 ：A组蛋白 B非组蛋白 CDNA D少量RNA11胞质骨架主要由 组成。 A中间纤维 B胶原纤维 C肌动蛋白 D微管1280S核糖体的大亚基由 构成：A28S rRNA、5S rRNA、5.8S rRNA B28S rRNA、16S rRNA C18S rRNA D49种蛋白质13具有极性的细胞结构有 ：A微丝 B中间纤维 C高尔基体 D微管14 细胞内具有质子泵的细胞器包括 ：A内体 B溶酶体 C线粒体 D叶绿体15 通讯连接的主要类型包括 ： A间隙连接 B间壁连接 C胞间连丝 D神经突触16 微体中都含有 ：A

3、氧化酶 B酸性磷酸酶 C琥珀酸脱氢酶 D过氧化氢酶17以下那些描述符和溶酶体的特征 ：A含酸性水解酶 B膜蛋白高度糖基化 C膜有质子泵 D由两层单位膜围成18 以下能结合GTP的蛋白质有 ： ARAS B微管蛋白 C肌动蛋白 DG蛋白19. 以下哪些情况下膜的流动性较高_ A. 胆固醇含量高 B. 不饱和脂肪酸含量高 C. 长链脂肪酸含量高 D. 温度高20. N-连接的糖基化中，糖链连接在哪一种氨基酸残基上_ A. 脯氨酸 (proline) B. 羟脯氨酸 (hydroxyproline) C. 天冬氨酸 (aspartic acid) D. 天冬酰胺 (asparagines)21. 以

4、下哪些运输途径是笼形蛋白（clathrin）衣被参与的_ A. 高尔基体内体(endosome) B. 高尔基体溶酶体，植物液泡 C. 高尔基体内质网 D. 质膜内体 E. 内质网高尔基体22. 光系统I的中心色素为_ A. 叶绿素b B. 叶绿素a C. 类胡萝卜素 D. 叶黄素 23. 动物细胞纤毛中的骨架结构为_，马达蛋白为_ A. 微丝 B. 微管 C. 中间纤维 D. Myosin E. Dynein F. Kinesin24. 微管具有极性，其（+）极的最外端是_ A. 球蛋白 B. 球蛋白 C. 球蛋白25. 纤粘连蛋白V字形二聚体在C端以哪一种化学键相连_ A. 离子键 B.

5、氢键 C. 二硫键26. 粘合带（adhesion belt）处连接的胞内骨架成分为_ A. 微丝 B. 微管 C. 中间纤维27. S期的早熟凝集染色体(prematurely condensed chromosome，PCC)为_ A. 单线状 B. 粉末状 C. 双线染色体 28. 将MPF注射到G1期的细胞内，则G1期细胞的染色体开始_ A. 解旋 B. 凝缩 C. 复制29. 动物小肠细胞对葡萄糖的吸收依靠_A. 钠离子梯度驱动的同向协同（symport） B. 钠离子梯度驱动的反向协同（antiport） C. 钾离子梯度驱动的同向协同D. 钾离子梯度驱动的反向协同30. 以下哪些

6、可作为细胞主动运输的直接能量来源_A. 离子梯度 B. NADH C. ATP D. 光31. 类囊体膜上电子传递的方向为_A. PSI PSII NADP+ B. PSI NADP+ PSII C. PSI PSII H2O D. PSII PSI NADP+ 32. 在磷脂酰肌醇信号通路中，G蛋白的直接效应酶是_A. 腺苷酸环化酶 B. 磷脂酶C- C. 蛋白激酶C 33. 以下哪一种感觉不是由G蛋白偶联型受体介导的_A. 听觉 B. 味觉 C. 视觉 D. 嗅觉34. 胞内受体_A. 是一类基因调控蛋白 B. 可结合到转录增强子上C. 是一类蛋白激酶 D. 是一类第二信使35. 鞭毛基体

7、和中心粒_A. 均由三联微管构成 B. 均由二联微管构成C. 前者由二联微管、后者由三联微管构成 D. 前者由三联微管、后者由二联微管构成36. 非组蛋白_A. 又称序列特异性DNA结合蛋白 B. 属酸性蛋白质C. 属碱性蛋白 D. 只在S期合成37. 端粒（telomere）_A. 能维持染色体的稳定性 B. 由高度重复的短序列串联而成 C. 具有“细胞分裂计数器”的作用 D. 复制需要反转录酶（端粒酶）38. 用离心法能够分离悬浮培养的分裂期细胞，是因为分裂期细胞_A. 密度大 B. 体积大 C. 沉降速度慢39. 以下哪些药物可以抑制动物细胞的胞质分裂_A. 秋水仙素 B. 紫杉酚 C.

8、 细胞松弛素 D. 微管蛋白抗体 E. 肌动蛋白抗体 F. 肌球蛋白抗体40. Wee1表达不足，细胞将_A. 过度生长 B. 过早分裂 C. 不分裂41. 在后期A (anaphase A)着丝点处的微管开始_A. 组装 B.去组装 C. 分化成微丝 D. 聚合42. “Hayflick”极限指_A. 细胞最小分裂次数 B. 细胞最大分裂次数 C. 细胞最适分裂次数42Phase contrast microscope can be used to observe A. Alive cell. B. Stained cell. C. Not stained cell D. All of th

9、e above.43If you wanted to separate eukaryote ribosomal subparticles by size, which of the following techniques would you use? A. Gel electrophoresis. B. Radiolabelling. C. Polymerase chain reaction. D. Density gradient centrifugation.44Which of the following description about prion in not true? A.

10、Prion is a sort of protein that causing some severe diseases, such as bovine sponge-form encephalopathies (BSM, mad cow disease). B. Prion can replicate itself by change the conformation of the proteins which are similar to prion. C. Prion is a transcription regulatory protein. D. Prion was discover

11、ed by Prusiner in 1982. 45In general, glycoproteins and glycolipids: A. Are on the outer leaflet of the unit membrane, facing the environment of a cell. B. Are on the inner leaflet of the unit membrane, facing the cytosol. C. Are equally distributed on the inner and outer surface of the unit membran

12、e. D. Occur only in internal membranes. 46Which of the following is not the function of the bio-membrane? A. Signal transduction. B. Transportation. C. Transcription. D. Compartmentalization. 47In human intestine glucose are absorbed by the way of A. Na+ powered antiport. B. Na+ powered symport. C.

13、Channel proteins. D. ABC transporter. 48The Na+/K+ ATPase of eukaryotic cells A. Is a P-type pump. B. Is a V- type pump. C. Is an F- type pump. D. Is an ATP-binding cassette. 49Following organelles are all surrounded by double bio-membranes except A. Mitochondrion B. Chloroplast. C. ER. D. Nucleus.

14、50Cis, medial and trans specify different compartments of the.A. Golgi body. B. Endoplasmic reticulum. C. Mitochondrion. D. Nucleus. 51The PH value in lysosome is lower than that in cytoplasm because lysosome membrane exist A. P-type H+ pump. B. F-type H+ pump. C. V-type H+ pump. D. P-type Na+-K+ pu

15、mp. 52Which of the following statements about signal sequences is false? A. Signal sequences are removed from protein by signal peptidase after the sorting process has been completed (except nuclear localization sequence (NLS) and signal patch). B. Each signal sequence specifies a particular destina

16、tion in the cell. C. NLS direct proteins into cytoplasm from nucleus. D. Any protein with a proper signal sequence will be transferred into the peroxisome. 53Which of the following about peroxisomes is true A. They are formed by binary fission of existing peroxisomes. B. They contain their own DNA.

17、C. They contain oxidative enzymes. D. Both A and C 54PSI absorb light of wavelength at A. 680nm.B. 700nmC. 280nmD. Both A and B55Which of the following is not encoded by the mtDNA? A. Cytochrome c. B. Cytochrome b. C. F0. D. Keratin. 56Cyclic photophosphorylation is accomplished by A. Photosystem I.

18、 B. Photosystem II. C. Photosystem III. D. Both photosystems I and II. 57G-protein linked receptors are A. Single-pass transmembrane proteins. B. Seven-pass transmembrane proteins. C. Three-pass transmembrane proteins. D. Not a transmembrane protein. 58Which of the following is NOT a second messenge

19、r? A. NO. B. cGMP. C. cAMP. D. IP3. 59Dyneins are motor proteins that move from along A. end to +end; microtubules. B. +end to end; microtubules. C. end to +end; microfilaments. D. +end to end; microfilaments. 61Microtubules function in cells A. As structural supports, maintaining the shape of the c

20、ell. B. To form the spindle during mitosis and meiosis. C. As a part of the system that causes movement in cilia and flagella. D. All of the above. 62Functions of tight junctions include all the following except A. Separation of extracellular fluid. B. Sealing of body cavities. C. Prevention of diff

21、usion of membrane proteins and lipids between apical and basolateral regions. D. Tight communication and extrange of small molecules between neighboring cells. 63Which of the following cytoskeleton structures links to desmosomes and hemidesmosomes? A. Microtubules. B. Intermediate filaments. C. Micr

22、ofilaments. D. all of the above. 64Cell binding domain in fibronectins contain A. RGD sequences. B. KDEL sequences. C. Gly-XY sequences. D. PEST sequences. 65The core proteins in nucleosome are A. H2A, H2B, H3, H4. B. H1A, H1B, H3, H4. C. H1A, H2A, H3, H4. D. H1, H2, H3, H4. 66Eukaryotic chromosomes

23、 contain two general domains which relate to the degree of condensation. These two regions are A. Uniform in the genetic information they contain. B. Called heterochromatin and euchromatin. C. Separated by large stretches of repetitive DNA. D. Both A and B 67What is the main function of cyclin prote

24、ins? A. They initiate a signal transduction cascade that leads to changes in the cells behavior. B. They regulate the cell division by binding and activating CDK enzymes. C. They are the main protein components of the kinetochore. D. They block cell cycle progression when conditions are not appropriate for growth. 68MPF consists of A. CDC2 and c