Chapter 25- Mycoplasma and Cell-Wall Defective Bacteria

Question 1

Causes postpartum fever and uterine tube infections

Answer 1

Mycoplasma hominis

Question 2

Causes nongonococcal urethritis in men, lung disease in infants with low birth weight

Answer 2

Ureaplasma urealyticum

Question 3

Closely related to M.pneumoniae associated with urethral and urogenital infections.

Answer 3

Mycoplasma genitalium

Question 4

The smallest genome of known mycoplasmas

Answer 4

M. genitalium

Question 5

Characteristics of mycoplasma

Answer 5

1. Small 125-250 nm
2. Pleomorphic
3. Resistant to penicillin
4. Reproduce in cell-free media
5. Inhibited by specific antibody
6. Has an affinity to mammalian cell membranes

Question 6

Culture for mycoplasma

Answer 6

Media with serum (glucose,urea, yeast extract)

Question 7

Parasitic mycoplasma grow on cell-free media that contain

Answer 7

lipoprotein and sterol

Question 8

CF antigens of mycoplasmas are

Answer 8

Glycolipids

Question 9

Antigens of mycoplasma for ELISA are

Answer 9

Proteins

Question 10

Associated with P1 adhesin

Answer 10

M. pneumoniae

Question 11

Associated with MgPa adhesin

Answer 11

M.genitalium

Question 12

Mycoplasma attached to the surface of ciliated and non-ciliated cells through

Answer 12

Mucosal cell sialoglycoconjugates

Sulfated glycolipids

Question 13

Specimes for the diagnostic lab test for mycoplasma

Answer 13

Throat swabs
Sputum
Inflammatory exudates
Respiratory, Urethral or genital secretions

Question 14

IP of M.hominis and U.urealyticum

Answer 14

2-4 days

Question 15

IP of M.pneumoniae

Answer 15

4 weeks

Question 16

Test used to cultivate M.pneumoniae

Answer 16

NAATs

Question 17

Treatment against Mycoplasma

Answer 17

Tetracycline

Erythromycin

Question 18

Mycoplasma are resistant to

Answer 18

Penicillin
Cephalosporins
Vancomycin

Question 19

M. genitalium in men is treated with

Answer 19

single dose of Azithromycin

Question 20

Titer for diagnosis for M.pneumoniae

Answer 20

1:64 or more