W8- CELL WALL Flashcards
this genus is know to infect or colonize humans and not animal in origin
-they belong to the family Mycoplasmataceae
Mycoplasma and Ureaplasma
it is known to be the smallest free living form. Unlike other bacteria, this prokaryotes doesn’t have a cell wall
-ubiquitous (present everywhere)
-has a 150 diff spp
-
Mycoplasma
What are the most prominent species of the genus Mycoplasma and Ureaplasma
- Mycoplasma pneumoniae
- Mycoplasma hominis
- Ureaplasma urealyticum
General Characteristic of Mycoplasma
- small cell size( 0.3 byt 0.8um) and small genome size
- requires STEROLS for membrane functions and growth
- mostly aerobic
- fastidious
What is the latin word for Class mollicutes
“SOFT SKIN”
this species have been insolated from the genital urinary tract of humans
- Mycoplasma hominis
- Ureaplasma urealyticum
this species have been insolated from the respiratory tract
Mycoplasma pneumoniae
What specie commonly colonizes infants ?
Note: this colonization does not persist beyond the age of 2
- Ureaplasma urealyticum
- mycoplasma hominis
T/F
ones an individual reaches puberty colonization with this mycoplasma can occur primarily as a result of sexual contact
TRUE
Mode of transmission for this agent to cause disease in the humans
-from a colonized mother to her newborn child
What species is the common cause of community acquired pneumonia
Mycoplasma pneumoniae
What are the species of mycoplasma is associated with HIV
- M. fermentans
- M. penetrans
- M. pirum
T/F
Mycoplasma colonize mucosal surfaces of the respiratory and urogenital tract
TRUE
What species has been implicated as playing a possible role in Mongonococcal urethritis
M. genitalium
T/F
since mycoplasma doesn’t have a cell wall, they are highly susceptible to drying therefore, TRANSPORT MEDIA are necessary
TRUE
Note: specially swab specimens
