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