General bacteriology MCQ 94+

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• The following baeteria are used as probiotics
  ক

  Lactobacillus

  খ

  Bifidobacterium

  গ

  Peptostreptococcus

  ঘ

  Sacchromyces cerevisiae

  ঙ

  Fusobacterium
• Genetic material transfer among bacteria
  ক

  Transduction

  খ

  Transformation

  গ

  Conjugation

  ঘ

  Sporulation and spore germination

  ঙ

  Replication
• The following statements regarding mechanism of development of resistance are correct
  ক

  By conformational alteration in the binding site

  খ

  By synthesizing enzyme

  গ

  By developing efflux mechanism

  ঘ

  By increasing uptake of the drug within the bacteria

  ঙ

  By forming new cell wall
• The following statements about the mechanism of antimicrobial are correct
  ক

  Rifampicin inhibits DNA dependent RNA polymerase

  খ

  Cephalosporines inactivates transpeptidase

  গ

  Metronidazole inhibits dihydrofolate reductase

  ঘ

  Chloroquine inhibits DNA gyrase

  ঙ

  Erythromycin alters cell membrane permeability
• Antimicrobial agents that act by inhibition of protein synthesis are
  ক

  Streptogramins

  খ

  Clarithromycin

  গ

  Clindaimycin

  ঘ

  Nalidixic acid

  ঙ

  Vancomycin
• Bacterial mechanisms of resistance development against lactum drugs are
  ক

  Production of β lactumase enzyme

  খ

  Altered porins

  গ

  Mutation in transpeptidase enzyme

  ঘ

  Efflux pump

  ঙ

  Alteration of metabolic pathway
• Inhibitors of protein synthesis that target 50S ribosomal subunit are
  ক

  Azithromycin

  খ

  Clindamycin

  গ

  Linezolid

  ঘ

  Amikacin

  ঙ

  Cephalosporin
• Antibiotics which act by inhibiting bacterial cell wall synthesis are
  ক

  Penicillin

  খ

  Bacitracin

  গ

  Chloramphenicol

  ঘ

  Tetracycline

  ঙ

  Aminoglycosides
• Live vaccines include
  ক

  Oral polio vaccine

  খ

  BCG vaccine

  গ

  Measles

  ঘ

  Tetanus vaccine

  ঙ

  Diphtheria vaccine
• Live attenuated vaccines are
  ক

  Oral polio vaccine

  খ

  BCG

  গ

  Influenza

  ঘ

  Cholera

  ঙ

  Hepatitis B vaccine
• Live attenuated vaccines are given in the prevention of
  ক

  Influenza

  খ

  Measles

  গ

  Mumps

  ঘ

  Pulmonary tuberculosis

  ঙ

  Rubella
• Live vaccine is/are
  ক

  MMR

  খ

  BCG

  গ

  Vaccine for rotavirus

  ঘ

  DPT

  ঙ

  Vaccine for meningococcus
• Vaccines are available against following bacteria
  ক

  Haemophilus influenza type-B

  খ

  Streptococcus pneumonae

  গ

  Listeria monocytogenes

  ঘ

  Staphylococcus aureus

  ঙ

  Streptococcus pyogenes
• Normal vaginal flora includes
  ক

  Anaerobic streptococci

  খ

  E. coli

  গ

  Staphylococcus aureus

  ঘ

  Lactobacillus

  ঙ

  Streptococcus pyogenes
• Normal flora of skin are
  ক

  Staphylococcus aureus

  খ

  Streptococcus viridians

  গ

  Streptococcus pneumonae

  ঘ

  Moraxella catarrhalis

  ঙ

  Mallassezia furfur
• Microorganisms which are normal flora of vagina and cause meningitis in newborn are
  ক

  E. coli

  খ

  Streptococcus agalactiae

  গ

  Candida albicans

  ঘ

  Ureaplasma urealyticum

  ঙ

  Staphylococcus epidermidis
• Flora of the vagina that cause meningitis in newborn are
  ক

  Escherechia coli

  খ

  Group B streptococcus

  গ

  Candida albicans

  ঘ

  Diphtheroids

  ঙ

  Enterococcus spp.
• Microbes that colonize the skin are
  ক

  Acinetobacter

  খ

  Candida

  গ

  Pseudomonas

  ঘ

  Clostridium

  ঙ

  Mycoplasma
• Normal flora of the conjunctiva are
  ক

  Chlamydia

  খ

  Streptococcus viridans

  গ

  Staphylococcus aureus

  ঘ

  Streptococcus epidermidis

  ঙ

  Nocardia
• Bacterial sterilization
  ক

  Milk is pasteurized by the process of sterilization

  খ

  Vegetative bacteria are more readily killed than bacterial spores

  গ

  Moist heat is most effective at a neutral pH

  ঘ

  Dry heat is more effective than moist heat

  ঙ

  The presence of protein increases the resistance of bacteria to heat
• Antiseptic solutions used for skin preparation are
  ক

  Alcohols

  খ

  Chlorhexidine

  গ

  Povidone-iodine

  ঘ

  Cetrimide

  ঙ

  Hypochlorites
• Physical methods of sterilization include
  ক

  Radiation

  খ

  Filtration

  গ

  Boiling

  ঘ

  Pasteurization

  ঙ

  Sterilization by ethylene oxide
• Moist heat is used to sterilize
  ক

  Draping sheet

  খ

  Gauze bandage

  গ

  Haemostat

  ঘ

  Suture materials

  ঙ

  Surgical blades
• Following are the high level disinfectants :
  ক

  Glutaraldehyde

  খ

  Hydrogen per-oxide

  গ

  Formaldehyde

  ঘ

  Quarternary ammonium compound

  ঙ

  Alcohol
• Endoscopes are sterilized by
  ক

  Formaldehyde solution

  খ

  2% glutaraldehyde solution

  গ

  Plasma sterilization

  ঘ

  Hydrogen peroxide

  ঙ

  Boiling
• In sterilization
  ক

  Gamma radiation is a sterilizing agent

  খ

  Culture media is sterilized by autoclave

  গ

  Pasteurization kills M.bovis

  ঘ

  Boiling is an important means of sterilizing rubber materials

  ঙ

  Surgical gloves are sterilized by dry heat
• Disposable syringes are sterilized by
  ক

  Ethylene oxide

  খ

  Ionizing radiation

  গ

  Formaldehyde

  ঘ

  Ultraviolet radiation

  ঙ

  Hexachloride
• Chemicals used for skin surface disinfection are
  ক

  Chlorhexidine

  খ

  Providone iodine

  গ

  Aqueous isopropyl alcohol

  ঘ

  Phenol

  ঙ

  Gluteraldehyde
• Heat sensitive medical devices are sterilized by
  ক

  Ethylene oxide gas

  খ

  Ionizing radiation

  গ

  70% alcohol

  ঘ

  Plasma sterilization

  ঙ

  Autoclave
• Endoscopic instruments can be sterilized by
  ক

  Ethylene oxide gas

  খ

  2% glutcraldehyde

  গ

  Ultraviolet radiation

  ঘ

  Autoclaving

  ঙ

  5% lysol