Micro images

Question 1

pink indicates which feature of E coli?

Answer 1

lactose fermenter

Question 2

usually with predisposing condition, large polysaccharide capsule defends against phagocytosis/complement, adhesins adhere to gut cells, siderophores chelate iron

Answer 2

Klebsiella

Question 3

________ on eosin methylene blue agar: slightly selective for Gram -

opportunistic, rarely causes dz in previously healthy pt

Answer 3

enterobacter

Question 4

mucoid appearance of _____

Answer 4

Klebsiella

Question 5

red colonies of _____

Answer 5

serratia

Question 6

swarming rings of _____ in blood agar

• gram - rods
• produce phenyalanine deaminase and urease

Answer 6

Proteus

Question 7

catalase -, grow in high salt, normal GI flora, opportunistic pathogen, resistance to ABs

Answer 7

enterococcus