Microbiology Flashcards
What is Microbiology?
Study of microorganisms
- activity
- structure
- metabolism
- identification
Bacteria, Viruses, Fungus, Parasites and Prions are examples of?
Pathogens
Protozoa, Helminths and Ectoparasites are under the category of?
Parasites
How are bacteria’s named?
Genus and Species
ex. Haemophilus Influenza
Toxocarra Canis is
Feces of dogs
Toxocarra Cati is
Feces of cats
What is Gram Stain and how do we take culture?
Method of staining used to distinguish and classify bacteria into two groups :
Gram Stain + or Gram Stain -
Identify the unknown bacteria stain with crystal violet
Treat with iodine
Treat with decolorizing alcohol
Add red counter stain
What is the colour for Gram Stain +?
Purple
What is the colour of Gram Stain -?
Red / Pink
Growth media can be?
Selective Differential or Enriched
What growth media is growth of specific organism called?
Selective Media
What growth media contains specific ingredients to distinguish between closely related organisms called?
Differential
What growth media has additional nutrients to support growth?
Enriched
What type of growth plate grows most bacteria?
Blood Agar
What type of growth plate is enriched with red blood cells?
- Neisseria
Chocolate Blood Agar
What type of growth plate differentiates based on oxygen requirements ; organisms look different?
Thioglycolate
What type of growth plate isolates gram negative bacteria based on lactose fermentation?
McConkey Agar
What type of growth plate is selective for Neisseria
Thayer Martin Media
What type of growth plate is selective for Mycobacterium and Nocardia?
Lowenstein Jensen Media
What type of media is for fungi growth?
Sabouraud’s Media
List Media Growth Plates
- Blood Agar
- Chocolate Blood Agar
- Thioglycolate
- MacConkey Agar
- Thayer Martin Media
- Lowenstein Jensen Media
- Sabouraud’s Media
