102.1 Microbiology Flashcards
Microbiology
Study of small living organisms
One-celled micro-organism
Bacteria
Pathogenic
Disease producing bacteria
Nonpathogenic
Non disease producing bacteria
What percent of bacteria is considered nonpathogenic?
70%
Cocci
Round in shape. Appear in groups or singularly
Staphylococci
Appear in bunches. Found in boils; pus-forming
Streptococci
Long chains, cause strep throat and are pus-forming
Diplococci
Appear in pars; cause pneumonia
Bacilli
Rod, bar shaped. Most common form of bacterial cells
Spirilla
Cause syphilis, Lyme disease, cholera
How does cocci move?
Travel via air or dust
This bacteria travels through liquids.
Bacilli, Spirilla
What is a virus?
Sub-microscopic particle, require a living host, causes diseases. Not treatable with antibiotics
External parasite
Organisms that live on or obtain their nutrients from another organism called a host