POTENTIAL VIRULENCE FACTORS OF ANAEROBIC BACTERIA

Question 1

Promotes abscess formation;
antiphagocytic function

Answer 1

Polysaccharide capsules

Question 2

Fimbriae, fibrils enable organisms to
adhere to cell surfaces

Answer 2

Adherence factors

Question 3

Bacteroides fragilis, Porphyromonas
gingivalis

Answer 3

Polysaccharide capsules ANAEROBES KNOWN OR
THOUGHT TO POSSESS

Question 4

B. fragilis, P. gingivalis

Answer 4

Adherence factors ANAEROBES KNOWN OR
THOUGHT TO POSSESS

Question 5

Catalyze the degradation of collagen

Answer 5

Collagenases

Question 6

Toxic to specific types of cells

Answer 6

Cytotoxins

Question 7

Destroy DNA

Answer 7

DNases

Question 8

Toxic to cells of the intestinal mucosa

Answer 8

Enterotoxin

Question 9

Lyse red blood cells liberating
hemoglobin

Answer 9

Hemolysins

Question 10

Catalyzes the hydrolysis of hyaluronic
acid, the cement substance of tissues

Answer 10

Hyaluronidase

Question 11

Catalyze the hydrolysis of ester
linkages between fatty acids and
glycerol of triglycerides and
phospholipids

Answer 11

Lipases

Question 12

Destroy or disrupt nerve tissue

Answer 12

Neurotoxins (e.g., botulinum toxin,
tetanospasmin)

Question 13

Catalyze the splitting of host
phospholipids (lecithinase)

Answer 13

Phospholipases

Question 14

Split host proteins by hydrolysis of
peptide bonds

Answer 14

Proteases