TOP Microbiology MCQS
All Questions for: TOP Microbiology MCQS
Question 351: Glasswares are sterilised by______________?
- A Incineration
- B Formaldehyde
- C Hot air oven
- D Autoclaving
Explanation: The correct answer to the question is: Hot air oven
Question 352: The HIV virus can be destroyed invitro by which of the following_____________?
- A Ethanol
- B Boiling
- C All of the above
- D Cidex
Explanation: The correct answer to the question is: All of the above
Question 353: Human immunodeficiency virus (HIV) affets_______________?
- A Helper T lymphocytes (CD4)
- B Mast cells
- C Fibroblasts
- D Red blood cells
Explanation: The correct answer to the question is: Helper T lymphocytes (CD4)
Question 354: Which of the following enzyme is required to induce the formation of a plasma clot pathogenic staphylococci_____________?
- A Coagulase
- B S protein
- C Lysozyme
- D Fibrinolysin
Explanation: The correct answer to the question is: Coagulase
Question 355: Secondary response is mediated by_______________?
- A IgE
- B IgG
- C IgM
- D IgA
Explanation: The correct answer to the question is: IgG
Question 356: Bacterial species which is protective or beneficial to the host is_______________?
- A Streptococcus sanguis
- B Spirochetes
- C Porphyromonas gingivalis
- D Treponema denticola
Explanation: The correct answer to the question is: Streptococcus sanguis
Question 357: Lesions caused by Entameoba histolytica predominantly involve________________?
- A Jejunum and Ileum
- B Duodenum
- C Stomach
- D Caecum and large intestine
Explanation: The correct answer to the question is: Caecum and large intestine
Question 358: A mother donated a kidney to her daughter having chronic renal failure, which kind of graft it represents________________?
- A Xeno
- B Auto
- C ISO
- D Allo
Explanation: The correct answer to the question is: Allo
Question 359: Mycobacterium tuberculosis is differentiated from other atypical mycobacteria by______________?
- A Pas staining
- B AFB staining
- C None of the above
- D Niacin test
Explanation: The correct answer to the question is: Niacin test
Question 360: The most primitive mode of gene transfer occurs by____________?
- A Cell fusion
- B Conjugation
- C Transduction
- D Translation
Explanation: The correct answer to the question is: Conjugation
Question 361: Sterilisation control for moist heat is
- A Using non-pathogenic strain of clostridium tetani
- B Using chemical indicator
- C Using methylene blue
- D using Bacillus stearo thermo philus
Explanation: The correct answer to the question is: using Bacillus stearo thermo philus
Question 362: Complement binding immunoglobin via the classical pathway is_______________?
- A IgG & IgA
- B IgG & igM
- C IgD & IgE
- D IgG & IgD
Explanation: The correct answer to the question is: IgG & igM
Question 363: Commonest mycobacterial infection in tropical countries_______________?
- A M. tuberculosis
- B M. avium intracellulare
- C M. leprae
- D Kansasi
Explanation: The correct answer to the question is: M. tuberculosis
Question 364: Sterilisation is______________?
- A All pathogenic and non-pathogenic microorganisms killed
- B Only pathogenic micro-organisms killed
- C Pathogens killed but spores are not affected
- D Non-pathogenic killed
Explanation: The correct answer to the question is: All pathogenic and non-pathogenic microorganisms killed
Question 365: Killer and Helper cells are part of_______________?
- A Monocytes
- B B cells
- C T cells
- D Macrophage
Explanation: The correct answer to the question is: T cells
Question 366: Bacteriophage was discovered by_________________?
- A Menkin
- B Twort and d
- C Metchinkoff
- D Robert koch
Explanation: The correct answer to the question is: Twort and d
Question 367: Growth factor needed for Salmonella_________________?
- A Niacin
- B B-12
- C Citrate
- D Tryptophan
Explanation: The correct answer to the question is: Tryptophan
Question 368: Louis Pasteur is not associated with_______________?
- A Discovery of Rabies Vaccine
- B Disproved spontaneous regression theory
- C Introduction of complex media
- D Discovery of M. Tuberculosis
Explanation: The correct answer to the question is: Discovery of M. Tuberculosis
Question 369: Synthesis of antibodies in plasma cells occurs in_________________?
- A Endoplasmic reticulum
- B Mitochondria
- C Golgi body
- D Nucleus
Explanation: The correct answer to the question is: Endoplasmic reticulum
Question 370: Leishmania is cultured in ________________ media?
- A NNN
- B Tellurite
- C Chocolate agar
- D Sabourauds
Explanation: The correct answer to the question is: NNN
Question 371: Purpose of Sterilization is to eliminate________________?
- A Viruses
- B Bacteria
- C Spore formers
- D Fungus
Explanation: The correct answer to the question is: Spore formers
Question 372: The major antiseptic value of soap lies in its ability to_____________?
- A Kill mircobes
- B Dehydrate microbial cells
- C Inhibit microbial growth
- D Remove microbes
Explanation: The correct answer to the question is: Remove microbes
Question 373: The only virus, which has double stranded RNA, is______________?
- A Bunya virus
- B Calci virus
- C Rhabdo virus
- D Reo virus
Explanation: The correct answer to the question is: Reo virus
Question 374: Culture media of candida is_________________?
- A Pingolevin
- B All of the above
- C Methylene blue dextrose agar
- D Saboraud
Explanation: The correct answer to the question is: Saboraud
Question 375: L.D bodies are seen in_______________?
- A Toxoplasmosis
- B Kalahazar
- C Malaria
- D Sleeping sickness
Explanation: The correct answer to the question is: Kalahazar
Question 376: Schuffner
- A Plasmodium ovale
- B Plasmodium vivax
- C Plasmodium malariae
- D Plasmodium falciparum
Explanation: The correct answer to the question is: Plasmodium vivax
Question 377: Which of the following represents the serologic evidence of recent Hepatitis B virus infection during window period ?
- A Anti HBs
- B IgM anti
- C None of the above
- D HBs Ag
Explanation: The correct answer to the question is: IgM anti
Question 378: Delhi boil refer to_______________?
- A Malignant pustule
- B Solar Keratosis
- C L. Tropica sore
- D Venereal ulcer
Explanation: The correct answer to the question is: L. Tropica sore
Question 379: Baby born to mother suffering from AIDS, all are true except________________?
- A All are true
- B Failure to thrive
- C 50% chances to have AIDS
- D Have infections
Explanation: The correct answer to the question is: 50% chances to have AIDS
Question 380: Delayed tuberculin test response is due to_______________?
- A B lymphocytes
- B T lymphocytes
- C Monocytes
- D Histiocytes
Explanation: The correct answer to the question is: T lymphocytes
Question 381: The cell wall deficient bacteria_______________?
- A Ehrlichiae
- B Chlamydiae
- C Mycoplasma
- D Rickettsiae
Explanation: The correct answer to the question is: Mycoplasma
Question 382: Pasteur developed the vaccine for_______________?
- A Cholera
- B Rabies
- C Anthrax
- D All of the above
Explanation: The correct answer to the question is: All of the above
Question 383: Borrelia vincenti is always associated with______________?
- A Spirochaetes
- B None of the above
- C Treponema vincenti
- D Fusiform bacilli
Explanation: The correct answer to the question is: Fusiform bacilli
Question 384: The Manufacturing unit of surgical needle & sutures are sterilized by ________________?
- A Gamma-Rays
- B Boiling
- C X-Rays
- D Autoclaving
Explanation: The correct answer to the question is: Gamma-Rays
Question 385: Glutaraldehyde is preferred more than formaldehyde because______________?
- A It has got more bactericidal activity
- B It has got more bacteriostatic activity
- C Its application is easier
- D It has got no deleterious effect on the cement and lenses of instruments
Explanation: The correct answer to the question is: It has got no deleterious effect on the cement and lenses of instruments
Question 386: The culture media used for cultivation of HSV is_____________?
- A Chocolate agar
- B Robertoson
- C Sabourad
- D Chorio allantoic membrane
Explanation: The correct answer to the question is: Chorio allantoic membrane
Question 387: Rh incompatibility is which type of hyper sensitivity reaction ?
- A Type I
- B Type II
- C Type III
- D Type IV
Explanation: The correct answer to the question is: Type II
Question 388: Silver impregnation method of staining is useful to demonstrate_____________?
- A Spirochetes
- B None of the above
- C Bacterial flagella
- D Both of the above
Explanation: The correct answer to the question is: Both of the above
Question 389: Which of the following would you consider to be general properties of viruses______________?
- A Contain equal proportions of protein, lipo polysaccharide and nucleic acids
- B New virus particle arises directly (by division) from preexisting viruses
- C Contain DNA but no RNA
- D Fall in to the general size range of 200-3000 angstrom unit
Explanation: The correct answer to the question is: Fall in to the general size range of 200-3000 angstrom unit
Question 390: Dematophytes are fungi infecting________________?
- A Nails, hair and skin
- B Systemic organs
- C Subcutaneous tissue
- D Superficial skin and deep tissue
Explanation: The correct answer to the question is: Nails, hair and skin
Question 391: Chlamydia causes all of the following except________________?
- A Trachoma
- B Pneumonia
- C Parotitis
- D Non-gonococcal urethritis
Explanation: The correct answer to the question is: Parotitis
Question 392: Staphylococcal toxic shock syndrome (SSS syndrome) is due to______________?
- A Enterotoxin D
- B Enterotoxin A
- C Enterotoxin F
- D Enterotoxin B
Explanation: The correct answer to the question is: Enterotoxin F
Question 393: Leprosy bacilli are transmitted from person to person by all except______________?
- A Through intact skin
- B From open sore
- C Through breast milk
- D Dischange from nasal mucosa
Explanation: The correct answer to the question is: Through breast milk
Question 394: ASO (Antistreptolysin 0) test is uesd for the diagnosis of________________?
- A Rheumatoid arthritis
- B Typhoid fever
- C Rickettsial fever
- D Rheumatie fever
Explanation: The correct answer to the question is: Rheumatie fever
Question 395: Actinomycetes is______________?
- A Fungus
- B A yeast like form
- C Gram positive bacteria
- D Gram negative bacteria
Explanation: The correct answer to the question is: Gram positive bacteria
Question 396: Stain used to make the wetted area of filter paper strip more visible is_____________?
- A Ninhydrin stain
- B Blue stain
- C Haemotoxin stain
- D Eosin stain
Explanation: The correct answer to the question is: Ninhydrin stain
Question 397: Dengue Hemorrhagic fever is caused by_____________?
- A Bacteria superadded on virus
- B Parasite
- C Virus
- D Bacteria
Explanation: The correct answer to the question is: Virus
Question 398: The term animalcules to oral microorganisms is given by__________________?
- A Leumenhoek
- B Robertson
- C Wd miller
- D Socranci
Explanation: The correct answer to the question is: Leumenhoek
Question 399: Portal of entry of poliovirus in mainly_______________?
- A Lung
- B Skin
- C Gastrointestinal tract
- D Nasal mucosa
Explanation: The correct answer to the question is: Gastrointestinal tract
Question 400: Phospholipid used to investigate syphilis by the reagin test is________________?
- A Serine
- B Cardiolipin
- C Plasminogen
- D Palmityl lecithin
Explanation: The correct answer to the question is: Cardiolipin