BACTERIAL MORPHOLOGY & GROWTH REQUIREMENT Flashcards
outermost covering
gelatinous substance
composed of polysaccharide or
polypeptide or both
GLYCOCALYX
a.k.a. murein sacculus
principal component is peptidoglycan
cell wall
protects bacterial from osmotic damage
bacterial cell wall
for the attachment of the
organism to the host cell
Teichoic acids
neutral sugars
acidic sugars
Polysaccharides
a bi-layered structure where the inner leaflet is
composed of a lipopolysaccharide ( LPS )
Outer Membrane
2 layers of lipids
phospholipids
lipopolysaccharide
connects the peptidoglycan to outer
membrane
Lipoprotein
fluid-filled space between the outer
membrane
contains important proteins &
enzymes
Periplasmic space
PROJECTING STRUCTURES
FLAGELLA
PILI or FIMBRIAE
AXIAL FILAMENTS
a tuft of flagella on one end of the
bacterium
Lophotrichous
a single flagellum on each end of the bacterium
Amphitrichous
flagella surrounding the bacteria
Peritrichous
only one flagellum at one end of the
bacterium
Monotrichous
Common Pili
for attachment
Sex pili
participates in gene
PILI or FIMBRIAE