ubiquitous organisms
size of bacteria
.5um to 10 um
what kingdom does bacteria belong to?
Monera
reservoir
any area where a microbe resides and serves as a potential source of infection
fomite
any object, surface, or even a body part
Three domains of life
archaea, bacteria, eukarya
growth patterns in broth
clear, turbid, flocculent, sediment, pellicle
surface characteristics of colony morphology
convex, umbonate, plateau, flat, raised, margin.
free living
do not reside on a particular host
ubiquitous
found all over and in every environment such as soil, water on plants, on animals, or humans.
domain eukarya
have nuclei. group 1: anaerobes, 70S ribosomes, no golgi, noMt. Group 2: aerobes, 80S ribosomes, golgi, Mt, chloroplasts. kingdom animalia
BSL4
highest level of containment. organisms are considered life-threatening and have a high probability of transmissions via aerosols. no effective immunizations, treatments, or cures for illness caused by these organisms.
proper incubation of a plate
inverted to prevent condensation contamination, smearing, and osmotic susceptibility.
personal protection equipment
long sleeve lab coats, splash proof lab goggles, latex gloves.
BSL2
low-mid level of containment moderate risk of infection through ingestion or exposure to mucous membranes via aerosols.
BSL1
lowest level for containment. low risk of infection not pathogenic healthy individual.
BSL3
mid-high level containment. high risk of infection pathogenic. biosafety cabinet.
bacteria
most widely distributes, simplest in morphology, smallest in size, most difficult to classify, hardest to identify
opportunistic pathogens
normally harmless but can cause infection when given the chance
domain archaea characteristics
prokaryotic, methanogens, extreme halophiles, hyperthermophiles
domain bacteria
prokaryotic, seldom photosynthetic
three major bacterial morphologies
rod (bacillus), spherical (cocci), helical and curved.
morphology forms
round, irregular, filamentous, rhizoid
margin colony morphology
smooth, rhizoid, irregular, lobate, filamentous
optical properties of colony morphology
transparents, translucent, cloudy, opaque, iridescent
