首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
A. Autibiotics destroy pathosenic microbes by preventing the formation of the walls surrounding the membranes of the microbial c
A. Autibiotics destroy pathosenic microbes by preventing the formation of the walls surrounding the membranes of the microbial c
admin
2009-07-11
49
问题
A. Autibiotics destroy pathosenic microbes by preventing the formation of the walls surrounding the membranes of the microbial cells that prevent the cells from split- ting open.
B. More than 70 clinically useful antibiotics have been in- vented to fight pathogenic microbes and cancer cells by interacting with their normal cell processes.
C. Human cells are not surrounded by a membrane
D. Some antibiotics disrupt the cell membrane of certain microbes, letting vital nutrients to escape form the cell or poisonous substances to enter and kill the cell.
E. Nystatin is used to disrupt the wall surrounding the membrane.
F. Some antibiotics fight disease by interfering with chemical activities in microbial cells but not in human cells.
*
选项
答案
D
解析
第四段的段意为“一些抗生素可以瓦解某些微生物的细胞膜,这种细胞膜控制着各种物质进出细胞的活动,一旦细胞膜破裂,一些重要的营养物质就会从细胞中流失,或者使一些有毒物质进入并杀死细胞。
转载请注明原文地址:https://kaotiyun.com/show/IO1d777K
本试题收录于:
职称英语卫生类B级题库职称英语分类
0
职称英语卫生类B级
职称英语
相关试题推荐
Directions:Usingtheinformationinthetext,completeeachsentence6-10,withawordorphrasefromthelistbelow.Foreach
Therearemanydifferentreasonswhyfashionissuchapowerfulculturalandeconomicinfluenceindevelopedsocietiesatthebe
Therearemanydifferentreasonswhyfashionissuchapowerfulculturalandeconomicinfluenceindevelopedsocietiesatthebe
1.Cellphonesareverycommonamongpeoplenowadays.Theyhavelongbeenmorethanjusttelephones.Theycantakeandsendphot
Whatmightdrivingonanautomatedhighwaybelike?Theanswerdependsonwhatkindofsystemisultimatelyadopted.Twodistinc
Therearevariouswaysinwhichindividualeconomicunitscaninteractwithoneanother.Threebasicwaysmaybedescribedasth
1.AccordingtotheWallStreetJournal,"Moreandmoreshoppersarebypassinghouseholdnamesforthecheaper,no-nameproducts
1.Theprivatecarisassumedtohavewidenedourhorizonsandincreasedourmobility.Whenweconsiderourchildren’smobility,
1.Theprivatecarisassumedtohavewidenedourhorizonsandincreasedourmobility.Whenweconsiderourchildren’smobility,
Inthe1950’saccumulatingscientificevidencelinkingcigarettesmokingandlungcancermadea(51)impact(52)thesmokingpublic.
随机试题
中国数千年的传统文化对于当代的年轻人来说是一笔宝贵的财富。它既体现在百花齐放的政治学和哲学之中,也融入在精美绝伦的手工制品之内。当代中国正以一种史无前例的速度急速发展,它急需寻找其独特的文化根基,同时它又需要中国人对自己的传统文化建立起信心和自豪感。此外,
由于存在着各种各样的外界干扰及其他种种原因,在沟通过程中信息往往被丢失或曲解,使信息传递不能发挥正常的作用,简述影响沟通的结构因素主要包括哪些方面?
与硬膜外麻醉手术中突然出现心率减慢无关的是
婚前医学检查的主要疾病中指定传染病不包括
在王某被杀一案中,侦查人员取得了下列线索:(1)王某的朋友李某的陈述,证明王某患有严重的失眠症;(2)王某邻居张某的陈述,描述案发当天曾看见一个衣着邋遢的女子(后经查为留着长发的男子齐某被误认)离开王某家;(3)王某的又一邻居肖某反映,看见案发当天小区收破
《千纸鹤》的作者是()。
万历年间,()的获得使得佃农与地主之间只存在单纯的经济强制关系,没有人身依附关系
决策支持系统的决策过程有三个阶段,第一,收集信息,从而发现和认识问题;第二,决策方案的设计和分析;第三,______。
Americannolongerexpectpublicfigures,whetherinspeechorinwriting,tocommandtheEnglishlanguagewithskillandgift.
DeniseSimmonsreceivedaburstofnationalattentionwhenshebecamemayorofCambridgeinJanuary,butsaysher25yearsofpo
最新回复
(
0
)