EXAMS

• What virus causes warts?

  Human papilloma virus (HPV)
• What is a treatment for HPV infections?

  Removing precancerous lesions
• Which virus is associated with warts?

  1. Papillomavirus
• What is true about STAPH, STREP, and syphilis?

  1. Can be treated with antibiotics
• What is the purpose of phenolphthalein?

  1. Acid and alkaline
• What is "Triple Sugar Iron Agar" used for?

  1. A differential agar for enteric bacteria
• What does Triple Sugar Iron Agar identify?

  1. Glucose-fermenting bacteria
• Which media increases erythrocyte permeate from a haemolytic organism?

  1. Blood agar
• What type of media do hemophilic bacteria require?

  1. Enriched media
• What type of media allows growth of desired organisms only?

  1. Selective media
• What distinguishes lactose-fermenting bacteria?

  1. Differential media
• What type of media supports growth without special requirements?

  1. General purpose media
• What type of media is Eosin methylene blue agar?

  1. Associated with both A and B
• What is used to compare turbidity in disk diffusion method?

  1. 0.5 McFarland Standard
• What is a potential error if the inoculum is too light in disk diffusion testing?

  1. False susceptible
• What is the appearance of yeast colonies with "mickey mouse cap"?

  Resembles a mariner's wheel
• What is the identification for a gram-negative rod from a patient?

  1. Erwinia spp.
• What is the characteristic of C. perges?

  1. Lecithinase positive
• What are the characteristics of selective media?

  • Allows growth of specific organisms
  • Inhibits growth of unwanted organisms
• What are the characteristics of differential media?

  • Distinguishes between different organisms
  • Often based on color changes
• What are the characteristics of enriched media?

  • Supports growth of fastidious organisms
  • Contains additional nutrients
• What are the characteristics of general purpose media?

  • Supports growth of a wide range of organisms
  • Does not have special requirements
• What is the purpose of the disk diffusion method?

  • Tests antibiotic susceptibility
  • Compares bacterial growth inhibition
• What is the significance of the McFarland Standard?

  • Standardizes bacterial inoculum density
  • Ensures consistent testing conditions
• What is the role of phenolphthalein in microbiological media?

  • Indicates pH changes
  • Used in acid-base titrations
• What is the role of blood agar in microbiology?

  • Supports growth of fastidious organisms
  • Detects hemolytic activity
• What is the role of chocolate agar in microbiology?

  • Enriched media for fastidious organisms
  • Supports growth of hemophilic bacteria