Bacterial Cell Morphology Flashcards
Shape of coccus
spherical
Shape of bacillus
rod
Shape of spirillum
spiral
Shape of coccobacillus
rod-shaped with round ends (mistaken for coccus)
Shape of vibrio
short curved rod
Shape of spirochete
spiral shaped cell with unique motility
Shape of pleomorphic
vary in shape
THICK peptidoglycan layer that surrounds cell membrane (stains purple)
gram positive cell wall
THIN peptidoglycan layer that surrounds cell membrane (stains pink)
gram negative cell wall
lipopolysaccharide (LPS) embedded in the outer membrane acts as a
endotoxin
pili aka
fimbriae
pili act as
adherence factors
sex pili transfer
plasmids
protective walls around some G+ and G-
capsule
capsule: virulence factor impedes…
phagocytosis
two gram + genera Bacillus, Clostridium
endospore
protective (not reproductive, resist heat/drying and disinfectants
endospore
extracellular proteins released from both G+ and G-
Exotoxins
exotoxins are good inducers of
antibodies
enterotoxins target
GI
neurotoxins target
nerves
pryogenic exotoxins cause
fever and rash
bacteria in the blood stream that can trigger sepsis
bacteremia
bacteremia that causes systemic immune response to infection
sepsis
fever, high white cell count, and increase heart rate
sepsis
endotoxic shock aka
septic shock
sepsis resulting in drop in BP and organ dysfunction
septic shock
