Quiz 4

Question 1

Porphyromonas gingivalis

Answer 1

highly proteinaceous, asaccharolytic, Gram-negative black pigmenting anaerobe

Question 2

Tannerella forsythia

Answer 2

Gram-negative anaerobe with outer S-layer

Question 3

Treponema denticola

Answer 3

and other medium and large size spirochetes are corkscrew shaped, generally difficult to culture, and are motile by means of their axial filaments/endoflagella

Question 4

Prevotella intermedia

Answer 4

Gram-negative black pigmenting anaerobe

Question 5

Campylobacter rectus

Answer 5

Gram-negative, motile, anaerobe

Question 6

Fusobacterium nucleatum

Answer 6

Gram-negative anaerobe present in high numbers in supra- and sub-gingival plaque in health and disease

Question 7

Eikenella corrodens

Answer 7

Gram-negative facultative. Colonies form pits on agar.

Question 8

Eubacterium nodatum

Answer 8

Gram-positive anaerobe

Question 9

Selenomonas noxia

Answer 9

Gram-negative, curved rod. Exhibits tumbling motility and has a tuft of flagella in the concave side.

Question 10

Peptostreptococci

Answer 10

Gram-positive anaerobic cocci

Question 11

Herpes viruses

Answer 11

may work synergistically with bacteria