Flashcards in Bac Structure/Function Deck (27):
lipotechoic acid, Gram positive
Peptidoglycan cell wall and outer membrane
very thick peptidoglycan cell wall
LPS and endotoxin
more likely to have pili
Escherichia and E. coli
no cell wall, pleomorphic
acid fast bacilli
Mycobacterium spp (TB)
Mycoplasma vs Mycobacterium
No cell wall and simple structures on outside vs has cell wall and thick waxy outer membrane-like surface with mycolic acid and unusual sugars
LPS structure contains:
Lipid A, stacked sugars (core sugars +/- repeating O antigen)
Endotoxin is the same as
everything from plasma membrane outwards, but not including extracellular polysaccharide capsule
slimy gelatinous surface structure
What holds capsule to cell?
Covalent bonds, not physically anchored
What is main function of capsule?
Minor function: protection
Disease causing microbes that have a capsule are often what?
Invasive fungi like pneumonia or meningitis
Pili vs flagellum functions?
Pili mediate attachment to host cells, exchange genetic info, twitch mobility, and biofilm formation; flagellum are for locomotion
Pili vs flagellum structure?
Pili made of pilin subunits; Flagellum made of flagellin subunits (H-antigen) attached to motor
H-antigen is AKA...