Microorganisms Flashcards
In the name Escherichia coli, the genus name is ______ and the species name is ________.
Genus - Escherichia
Species - coli
What does spp mean in streptococcus spp. ?
Species
What is the name of the yeast that causes thrush?
Candida albicans
Name the 2 different groups of cells
Prokaryotes and eukaryotes
Which group of cells are more complex?
Eukaryotes
When writing scientific names, what comes first? The genus or the species?
Genus
When writing a scientific name you write in italics or
Underline it
List in order the 6 stages of the chain of infection model
Infectious agent, Reservoir, portal of exit, mode of transmission, portal of entry, susceptible host.
What are standard precautions?
They ensure safe practice within health care settings to offer protection against infection
List 3 examples of standard precautions
Hand hygiene, PPE, cough etiquette, waste management, appropriate handling of linen, routine environmental cleaning.
Where is DNA found in a Eukaryote cell?
In chromosomes within the nucleus
are there membrane bound organelles within a prokaryote cell?
No
What is a gram stain test used for?
Identification of bacterial species
Do gram positive bacteria have a thicker or thinner layer of peptidoglycan?
Thicker
What are disease causing microorganisms called?
Pathogens
What do you call a bacteria what is usually harmless but in certain conditions, becomes harmful?
Opportunist
Are fungi prokaryotes or eukaryotes?
Eukaryotes
What are unicellular fungi called?
Yeasts
What are multicellular fungi called?
Moulds
Name a superficial fungal infection?
Tinea pedis (athletes foot) or Tinea corporis (ringworm)
Name a systemic fungal infection
Aspergillosis
Are Protozoa prokaryotes or eukaryotes?
Eukaryotes
Protozoa are classified by the way they _______
Move
List 3 ways a Protozoa moves
Cilia, flagella, pseudopodia, no motile stage.
List 2 protozoan infections
Malaria, giardiasis
When conditions are unfavourable, a Protozoa forms a _____.
Cyst
In a virus, what surrounds the DNA:RNA?
Capsid
Do all viruses have a membrane like envelope that surrounds the capsid?
No
What does obligate intracellular parasite mean?
Virus needs host cell to replicate
List the 5 steps of viral replication
Attachment Entry and uncoating Replication Assembly Release
Name 2 examples of common viral infections
Coronavirus, influenza, rhinovirus, measles, mumps, Rubella.
