Test One Vocab Flashcards
Virulence
The ability to cause disease
Opportunistic Pathogens
An organism that is only able to cause disease when its host is immune suppressed
Eukaryotes
An organism that consists of cells that genetic material is DNA
Capsule
Polysacccrihide layer around some bacteria.
Allows for resistance from phagocytosis
Ribosome
Sites for protein synthesis, contain RNA and Associated proteins
Isotonic
Equal concentrations of water and solute
Endotoxin
Released when bacteria cell dies.
Causes disease
Found in LPS
Mycoplasm
Bacteria that do not have a cell wall
Ex. M. Pneumonia
Hemiths
Parasitic Worms (Fluke, tape, and nematodes)
Trematodes
Parastic worms known as fluke
Large in size
Get into solid tissue
Pathogen
A bacterium, virus, or other organism that may cause disease
Epidemiology
Branch of medicine that deals with incidence and prevention of disease
Prokaryotes
Single celled organism that has no distinct nucleus or other organelles
Fimbrae (Pilli)
Allows for movement and adherence to host
Allows for bacteria to transfer antibiotic resistant genes.
Inclusion Bodies
Found in the cytoplasm of cell.
Used to store molecules that are used for Energy
Peptidoglycan
The substance that forms the cell wall of most bacteria
Differs between gram positive and gram negative bacteria
Periplasm
Found in gram negative cell wall
Functions as a defense mechanism
Archae
Member of the prokaryotes
Contains no peptidoglycan in cell wall
Not sensitive to antibiotics
Fungi
Member of the Eukaryotes
Most are multicellular
Absorbs organic material from environment
(Ex. Green Mold= Penicillin)
Algae
Member of Eukaryotes
May be Uni or multicelluar
Produces oxygen and carbohydrates for other organisms to use
pathogenisis
The development of a disease
Nucleoid
Contains all genetic material inside of a prokaryotic organism
Binary Fission
Prokaryotes way of reproducing themselves
Cell membrane
Acts as a permeable barrier
Allows only hydrophobic molecules through
Lipopolysaccharide
Found in gram negatives
Contains Endotoxins
Causes inflammation and fever
Outer Membrane
Only found in gram negative
Protective Barrier
Resistent to antibiotics and anteseptics
Allows for diffusion of small molecules
Protists
Members of Eukaryotes
May cause disease
Responsible for Malaria
Normal Microbial Flora
All bacteria found within an organism that doesn’t cause disease
Chromosone
Carries genetic information in the form of genes
Virulence Factor
Molecules produced by the pathogen allowing them to be more pathogenic
Axial Fillament
Central filament of flagellum
Lipid A
Found in outer-membrane
Anchors LPS
Responsible for endotoxin activity
O-Antigen
Found in the LPS Immunogenic Used for diagnostic tests Used to determine which bacteria (ex. E.coli 0157)
Virus
Non-cellular parasitic cells
DNA or RNA surrounded by protein
Some may be enveloped
(ex. Herpes Virus)