Microbiology - chapter 16 - Bacteria without cells walls

Question 0

2 pathogenic species of Mycoplasmataceae?

Answer 0

Mycoplasma pneumoniae and Ureaplasma urealyticum

Question 1

What are the tiniest free-living organisms capable of self-replication?

Answer 1

Mycoplasmataceae

Question 2

Mycoplasma pneumoniae, mechanism of disease?

Answer 2

Mycoplasmae pneumoniae attaches to respiratory epithelial cells with the help of Protein P1. After 2-3 week incubation periods, patients will have a gradual onset of fever, malaise, dry persistent cough.

Question 3

What are cold agglutinins?

Answer 3

Monoclonal IgM antibodies that bind to “I” antigen. The “I” antigen is a common red cell antigen that appears to be modified and made antigenic during an infection with Mycoplasma pneumoniae

Question 4

Ureaplasma urealyticum, general info?

Answer 4

Loves to swim around in urine and produce urease to break down urea. Normal flora in 60% of healthy sexually active women and commonly cause lower UTI.

Question 5

What do Mycoplasmataceae use to create a more stable and shielding cell membrane?

Answer 5

Sterols, like cholesterol.