Chapter 19 Textbook Review

Question 1

Endospore formers

Answer 1

Bacillus & clostridium

Question 2

Non endospore formers

Answer 2

Listeria

Corynebacterium

Mycobacterium

Question 3

Bacillus

Answer 3

Aerobic

Catalase +

Soil reservoir

Question 4

Bacillus anthrax characteristics

Answer 4

Facultative anaerobe

Gram +

Soil reservoir

Question 5

What infection causes a black eschar?

Answer 5

Cutaneous anthrax

Question 6

Clostridium

Answer 6

Anaerobic

Catalase -

Soil reservoir

Question 7

Other name for gas gangrene

Answer 7

Myonecrosis

Question 8

Virulence factors for gas gangrene

Answer 8

Collagenase, Hyaluronidase, and DNase enhance tissue destruction

Question 9

Virulence factors for bacillus anthrax

Answer 9

Polypeptide capsule

Exotoxins (that cause edema & cell death)

Question 10

What is the potent neurotoxin that causes the major symptom’s for tetanus

Answer 10

Tetanospasmin

Question 11

What exactly does Tetanospasmin do?

Answer 11

Causes the muscles to contract uncontrollably

Question 12

What infection has spastic paralysis

Answer 12

Tetanus

Question 13

Virulence factors for c.diff

Answer 13

Enterotoxins cause epithelial necrosis of the colon

Question 14

Ach is prevented from the…

Answer 14

Botulinum toxin

Question 15

Listeria monocytogenes

Answer 15

No capsule or spores

Resistant to heat, cold, salt, pH, bile

Intracellular pathogen

Gram +

Soil reservoir

Question 16

Listeria virulence factor

Answer 16

Replicates in cytoplasm of host cell after inducing its own phagocytosis

Question 17

Myobacteria

Answer 17

Acid fast stain

Strict aerobe

Mycolic acid & waxy cell wall