[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fxLN3MUwXCdr5RPjwZYIDpOj8CHyjOmngWTgoKXPtZbg":3,"$fqc25_uYIcT2SGuPmmz3YUu2QigT0vaDaECPsNUP9SO8":32,"$f3Ft0rKFJHppdzE-vuveecxx1BUcg9iOlMLtyzf_MJDg":87},[4,8,12,16,20,24,28],{"title":5,"slug":6,"path":7},"About Microbeonline.com","about-microbeonline-com","\u002Fabout-microbeonline-com\u002F",{"title":9,"slug":10,"path":11},"About Me","about-me","\u002Fabout-microbeonline-com\u002Fabout-me\u002F",{"title":13,"slug":14,"path":15},"Advertise with Us","advertise-us","\u002Fadvertise-us\u002F",{"title":17,"slug":18,"path":19},"Privacy Policy","privacy-policy","\u002Fprivacy-policy\u002F",{"title":21,"slug":22,"path":23},"Abbreviations","abbreviations","\u002Fabbreviations\u002F",{"title":25,"slug":26,"path":27},"Microbes","microbes","\u002Fmicrobes\u002F",{"title":29,"slug":30,"path":31},"Books","recommended-books","\u002Frecommended-books\u002F",{"type":33,"data":34},"blog",{"slug":35,"title":36,"description":36,"seoTitle":37,"seoDescription":37,"author":38,"createdDate":39,"lastUpdatedDate":40,"draft":41,"category":42,"image":37,"body":43,"faq":44,"tags":45,"related":47},"mcq-microbiology-infectious-disease-bacteriology","MCQs Bacteriology (11-20): Bacterial Infections with Answers",null,"Acharya Tankeshwar","2012-04-14","2026-07-12",false,"mcqs","**MCQ Bacteriology 11**\n\nThe survival of Mycobacteria after ingestion by macrophages is attributed to\\\na. Bacterial inhibition of [complement activation via the alternative pathway](\u002Fcomplement-system-pathways-functions-regulation\u002F).\\\nb. Bacterial inhibition of phagolysosome formation and interference with endosomal acidification\\\nc. The poor immunogenicity of the cell wall glycolipids.\\\nd. The bacterium’s rapid escape from the endosome into the cytoplasm of infected cells.\\\ne. The bacterium’s resistance to oxygen-active radicals released into the phagolysosome.\n\n**MCQ Bacteriology 12**\n\nA 21 year newly married woman developed a urinary tract infection (UTI). At the time she sought medical advice, she was febrile and complained of painful urination and flank pain. Her urine appeared “cloudy”. Urine culture yields a lactose-fermenting, indole-positive, Gram-negative bacillus.\n\nThe infectiveness of the organism responsible for this urinary tract infection is associated with specific,\\\na. Exotoxins\\\nb. K antigens\\\nc. Metabolic properties\\\nd. P fimbriae\\\ne. [Plasmids](\u002Fplasmids-properties-types-uses\u002F)\n\n![](https:\u002F\u002Fassets.microbeonline.com\u002Fblogs\u002FMCQ-Bacteriology-11-20.png)**MCQ Bacteriology 13**\n\nThe role of bacterial capsules as virulence factors is usually related to their ability to interfere with\\\na. Antibody binding\\\nb. B lymphocyte activation\\\nc. Antibacterial penetration of bacterial cells\\\nd. [Phagocytosis](\u002Fphagocytosis-mechanism-and-steps\u002F)\\\ne. The release of interferon-gamma and other macrophage activating cytokines\n\n**MCQ Bacteriology 14**\n\nA [mutation](\u002Fmutation\u002F) in DNA gyrase is likely to result in resistance to which one of the following antibiotics?\\\na. Amphotericin B\\\nb. Ciprofloxacin\\\nc. Penicillin\\\nd. Rifampin\\\ne. Streptomycin\n\n**MCQ Bacteriology 15**\n\nResistance of *Staphylococcus aureus* to methicillin is most often caused by\\\na. alternation of the major target for the drug\\\nb. cell membrane impermeability\\\nc. decreased uptake of the antibiotic\\\nd. Inactivation of autolysins\\\ne. synthesis of a potent Beta-Lactamase\n\n**MCQ Bacteriology 16**\n\nThe molecular basis for the effect of cholera toxin on duodenal mucosal cells is\\\na. activation of adenylate Cyclase\\\nb. inactivation of a G1 protein\\\nc. increased activity of potassium pumps\\\nd. increased generation of cyclic adenosine monophosphate (cAMP)\\\ne. ribosylation of guanosine triphosphate (GTP) binding protein.\n\n**MCQ Bacteriology 17**\n\nThe synthesis of erythrogenic toxin by specific strains of [group A Streptococcus](\u002Fstreptococcus-pyogens-gas-common-characteristics-virulence-factors-diseases-key-tests\u002F) is determined by a\\\na. bacterial chromosomal gene\\\nb. gene carried by a lysogenic phage\\\nc. specific virulence plasmid\\\nd. [Transposon](\u002Ftransposons\u002F)\n\n**MCQ Bacteriology 18**\n\nWhich one of the following factors, released by heating a suspension of sheep erythrocytes, is required for the growth of *Haemophilus Influenzae* in chocolate agar?a. Coagulase\\\nb. Nicotinamide adenine dinucleotide (NAD)\\\nc. Hemoglobind. Hemolysin\\\ne. Protein A\n\n**MCQ Bacteriology 19**\n\nWhich one of the following bacteria is most likely to be relatively resistant to antibiotics as a result of the relative impermeability of its cell wall?\\\na. *Haemophilus influenzae*\\\nb. *Pseudomonas aeruginosa*\\\nc. *Staphylococcus aureus*\\\nd. *Streptococcus pneumoniae*\\\ne. *Streptococcus pyogenes*\n\n**MCQ Bacteriology 20**\n\nA patient develops explosive, watery diarrhea 24 hours after eating seafood. What bacterium is most likely involved?\\\na. *Campylobacter fetus*\\\nb. *Salmonella typhimurium*\\\nc. *Shigella flexneri*\\\nd. *Vibrio cholerae*\\\ne. *Vibrio parahaemolyticus*\n\n**Answers Key**\n\n11\\. **b**. Bacterial inhibition of phagolysosome formation and interference with endosomal acidification\n\n12.**d**. P fimbriae\n\n13.**d.** Phagocytosis\n\n14.**b**. Ciprofloxacin\n\n15.**a**. Alternation of the major target for the drug (i.e. Penicillin Binding Proteins)\n\n16.**d.** increased generation of cyclic adenosine monophosphate (cAMP)\n\n17.b. gene carried by a lysogenic phage\n\n18.**b.** Nicotinamide adenine dinucleotide (NAD) i.e. Factor V\n\n19. c.*Staphylococcus aureus*\n20. **e.** *Vibrio parahemolyticus* (It is commonly found in brackish\u002Fsaltwater of sea).",[],[46],"bacteriology-mcqs",[48,55,61,67,75,81],{"slug":49,"title":50,"description":50,"seoTitle":37,"seoDescription":37,"author":38,"createdDate":51,"lastUpdatedDate":40,"draft":41,"category":42,"image":52,"faq":53,"tags":54},"mcqs-on-sexually-transmitted-infections-and-spiral-bacteria","MCQs Bacteriology (61-70): Sexually Transmitted Infections","2013-05-09","https:\u002F\u002Fassets.microbeonline.com\u002Fblogs\u002Fmcqs-in-sexually-transmitted-infections.jpg",[],[46],{"slug":56,"title":57,"description":57,"seoTitle":37,"seoDescription":37,"author":38,"createdDate":58,"lastUpdatedDate":40,"draft":41,"category":42,"image":37,"faq":59,"tags":60},"mcq-microbiology-bacteriology-bacterial-skin-infections","MCQs Bacteriology (41-50): Bacterial Skin Infections","2012-06-08",[],[46],{"slug":62,"title":63,"description":63,"seoTitle":37,"seoDescription":37,"author":38,"createdDate":64,"lastUpdatedDate":40,"draft":41,"category":42,"image":37,"faq":65,"tags":66},"mcq-microbiology-bacterial-infections-and-diseases","MCQs Bacteriology (31-40): Bacterial Infections","2012-05-27",[],[46],{"slug":68,"title":69,"description":69,"seoTitle":70,"seoDescription":71,"author":38,"createdDate":72,"lastUpdatedDate":40,"draft":41,"category":42,"image":37,"faq":73,"tags":74},"mcq-bacteriology-laboratory-diagnosis-of-bacterial-disease","MCQs Bacteriology (21-30): Lab Diagnosis of Bacterial Disease","Bacteriology Diagnosis MCQs With Answers: Questions 21–30","Practice bacteriology diagnosis questions 21-30 with answers and explanations covering specimen testing, culture findings, pathogens, and interpretation.","2012-05-11",[],[46],{"slug":76,"title":77,"description":77,"seoTitle":37,"seoDescription":37,"author":38,"createdDate":78,"lastUpdatedDate":40,"draft":41,"category":42,"image":37,"faq":79,"tags":80},"top-ten-most-important-mcqs-about-rickettsial-disease","Top Ten MCQs about Rickettsial Disease","2012-04-09",[],[46],{"slug":82,"title":83,"description":83,"seoTitle":37,"seoDescription":37,"author":38,"createdDate":84,"lastUpdatedDate":40,"draft":41,"category":42,"image":37,"faq":85,"tags":86},"multiple-choice-questions-mcq-microbiologybacteriology","MCQs Bacteriology (1-10): With Answers and Explanations","2012-02-26",[],[46],[88,94,101,106,110,114,119,124,128,132],{"slug":89,"name":38,"description":90,"image":91,"body":92,"postCount":93},"acharya-tankeshwar","Editor-in-chief","https:\u002F\u002Fassets.microbeonline.com\u002Fauthors\u002Ftankeshwar-acharya-author-microbeonline.jpg","***Tankeshwar Acharya, MSc (Medical Microbiology)***\n\n*Tankeshwar Acharya is an Assistant Professor in the Department of Microbiology at Patan Academy of Health Sciences (PAHS), Nepal, where he has been teaching and practicing clinical microbiology for over 14 years. He is the founder of Microbe Online, one of the leading free microbiology education resources on the web, covering bacteriology, mycology, parasitology, immunology, and clinical laboratory diagnostics written from direct experience in both the classroom and the diagnostic laboratory.*",433,{"slug":95,"name":96,"description":97,"image":98,"body":99,"postCount":100},"ashma-shrestha","Ashma Shrestha","SEO Copywriter and Science Communicator\nKathmandu, Nepal","https:\u002F\u002Fassets.microbeonline.com\u002Fauthors\u002Fashma-shrestha.png","Ashma Shrestha holds a Master of Science in Medical Microbiology from the Institute of Science and Technology (IOST), Tribhuvan University, Nepal, where she developed a strong foundation in virology, molecular biology, and diagnostic microbiology.\n\nShe now works as an SEO Copywriter at Resolution Digital, where she combines her scientific training with research-driven content strategy. She is certified in Google Analytics and Google Business Profile (GBP), and brings a data-informed approach to science communication writing content that is not only accurate but structured to reach and serve the students who need it most.\n\nAt microbeonline, Ashma contributes articles primarily in virology and molecular biology, areas she finds most compelling for their mechanistic depth and their growing clinical relevance. Her writing reflects the same standard the site is built on: factual rigor, clear explanation of the *why* behind microbiology concepts, and content that helps students move from memorization to genuine understanding.\n\nShe is passionate about making complex microbiological concepts accessible without sacrificing accuracy; a skill that sits at the intersection of her scientific training and her professional work in content and SEO.",81,{"slug":102,"name":103,"description":104,"image":37,"body":37,"postCount":105},"sushmita-baniya","Sushmita Baniya","Author \u002F Contributor",32,{"slug":107,"name":108,"description":104,"image":37,"body":37,"postCount":109},"samikshya-acharya","Samikshya Acharya",20,{"slug":111,"name":112,"description":104,"image":37,"body":37,"postCount":113},"alisha-tripathi","Alisha Tripathi",6,{"slug":115,"name":116,"description":117,"image":37,"body":37,"postCount":118},"aastha-shrestha","Aastha Shrestha"," Author \u002F Contributor",10,{"slug":120,"name":121,"description":122,"image":37,"body":37,"postCount":123},"guest-author","Guest Author","Guest Author \u002F Contributor",2,{"slug":125,"name":126,"description":104,"image":37,"body":37,"postCount":127},"srijana-khanal","Srijana Khanal",18,{"slug":129,"name":130,"description":122,"image":37,"body":37,"postCount":131},"dr-poonam-acharya","Dr. Poonam Acharya",1,{"slug":133,"name":134,"description":104,"image":37,"body":135,"postCount":136},"nisha-rijal","Nisha Rijal","**Nisha Rijal** is a microbiologist and quality assurance specialist. She served for nearly 12 years as a microbiologist at the National Public Health Laboratory (NPHL), Nepal's national reference laboratory, and continues to work as a consultant microbiologist in international public health organization. ",51]