Bacteria — Flashcards

Flashcard 561: What are the two types of bacterial transduction?

Answer: Generalized and Specialized

Extra: Generalized transduction: Any piece of bacterial DNA can be packaged into the phage head. Occurs during the lytic cycle. Specialized transduction: Only specific bacterial genes (those adjacent to the prophage integration site) are packaged. Occurs when a prophage is incorrectly excised during the lysogenic cycle.

Flashcard 562: Which bacteria is commonly associated with jaw trauma?_____

Answer: Actinomyces

Flashcard 563: Administration of toxoid is an example of _____ immunization

Answer: active

Flashcard 564: What is the route of transmission of Bordetella pertussis?_____

Answer: Respiratory droplets

Flashcard 565: _____ is the transfer of DNA between bacteria using 'sex pili'

Answer: Conjugation

Flashcard 566: Scalded skin syndrome is caused by what organism? _____

Answer: Staphylococcus aureus

Flashcard 567: Yersinia pestis is _____, protecting the bacteria from phagocytosis

Answer: encapsulated

Flashcard 568: Which bacteria produces an alpha toxin that functions as a phospholipase (lecithinase)?_____

Answer: Clostridium perfringens

Flashcard 569: Direct transmission of Brucella spp. results from contact with _____

Answer: farm animals (cows, pigs, goats, sheep are the reservoirs)

Flashcard 570: Which bacteria has gram-variable staining?_____

Answer: Gardnerella vaginalis