Exam 1 - Intro to Microbiology (Extra)

Koch’s postulates: step 1

The organism must be present in all cases of the disease

Koch’s postulates: step 2

be isolated from disease patients

Koch’s postulates: step 3

cause the disease when reintroduced to a healthy animal test subject

Koch’s postulates: step 4

be isolated again from the new host

koch’s postulates: purpose

A series of logical steps that verified the germ theory and could establish whether an organism was pathogenic and which discease it caused

domain eukarya

eukaryotic cell

domain bacteria

prokaryotic cell

domain archaea

prokaryotic cell

fungi

eukaryotic

protozoan

eukaryotic

helminths

eukaryotic

virus

nonliving

prion

nonliving

bacteria

prokaryotic

bacilli

Cylindrical or rod-shaped cell

spirochete

Flexible spiral-shaped cell

spirillum

Slightly curled cell

cocci

Spherical or ball-shaped cell

diplococcus

two spherical cells joined together

diplobacillus

two rod-shaped cells joined together

streptococcus

chain of spherical cells

staphylococci

grape-like cluster of spherical cells

palisade

rod-shaped cells joined at their ends forming V pattern or aligned next to each other

external layers of a prokaryotic cell: outermost 1

glycocolx

external layers of a prokaryotic cell: 2

S-layer

external layers of a prokaryotic cell: 3

outer membrane

external layers of a prokaryotic cell: 4

cell wall

external layers of a prokaryotic cell: innermost 5

plasma membrane

nucleolus

responsible for producing the components of an organelle called ribosomes

fungal cell wall

contain chitin/cellulose

bacterial cell wall

contain peptidoglycan

virus’ three classification

structure, chemical composition, and similiarites in genetic makeup