Unit 1 Chapter 4

Question 1

o Bordetella

Answer 1

Bordetella Gram (-) coccobacillus B. pertussis causes whopping cough

Question 2

Neisseria

Answer 2

Neisseria Gram (-) coccus Pathogens cause gonorrhea and meningitis (Gram negative cocci are rare)

Question 3

Escherichia

Answer 3

Escherichia Gram (-) bacillus Model organism, can be commensal or disease causing (shiga toxin)

Question 4

Enterobacter

Answer 4

Enterobacter Gram (-) bacillus Facultative anaerobe; cause urinary and respiratory tract infections in hospitalized patients;

Question 5

Klebsiella

Answer 5

Klebsiella Gram (-) bacillus Polysaccharide capsule is a virulence factor

Question 6

Pseudomonas

Answer 6

Pseudomonas Gram (-) bacillus Wound infection (especially burn) and opportunistic lung infections in CF patients

Question 7

Vibrio

Answer 7

Gram (-) curved rod Motile rods, cholera toxin contributes to watery diarrhea

Question 8

Yersinia

Answer 8

Gram (-) bacillus Bubonic plague

Question 9

Helicobacter

Answer 9

Helicobacter Gram (-) spiral shaped Peptic ulcers (Nobel Prize for this discovery)

Question 10

Borrelia

Answer 10

Gram (-) like, spirochete Burgdorferi causes Lyme Disease (most are spread by tick bites)

Question 11

Mycobacterium

Answer 11

Gram (+) acid fast Waxy coat, resistant to killing by immune cells, diseases include TB and Hansen’s disease (Leprosy)

Question 12

Streptomyces

Answer 12

Gram (+) filamentous Bacillus Source of natural antibiotics

Question 13

Bacillus

Answer 13

Gram (+) bacillus Spore forming organisms, contains the etiologic agent of anthrax

Question 14

Clostridium

Answer 14

Gram (+) bacillus Anaerobe (can not grow in presence of oxygen). All known species are pathogens. Different species produce toxins that cause tetanus, botulism, gas gangrene, colitis

Question 15

Enterococcus

Answer 15

Gram (+) diplococcus Anaerobic, found in gut, but can be opportunistic nosocomial pathogen

Question 16

Staphylococcus

Answer 16

Gram (+) grape-like clusters of cocci Can be isolated by growing on high salt %. Soft tissue infections. Some are resistant to many antibiotics (MRSA)

Question 17

Streptococcus

Answer 17

Gram (+) cocci in chains Cause of Strep throat produces toxins that lyse red blood cells