failing this 3rd med micro quiz

VP QC

neg - klebsiella aerogenes

pos - e coli

VP results

positive - red

negative - no color change

MR QC

neg - kleb aerogenes

pos - e. coli

MR results

positive - red

negative - yellow

citrate QC

e coli → no growth/little growth, no color change

kleb. pneumoniae → growth and blue color

citrate results

positive - growth and blue color

negative - no/little growth and no color change

urea QC

negative - e coli

positive - kleb pneumoniae

urea results

positive - pink

negative - yellow

oxidase QC

negative - e coli

positive - pseudomonas aeruginosa

oxidase results

positive - violet/purple

negative - no color change

indole QC

negative - kleb pneumoniae

positive - e coli

indole results

positive - bue/green

negative - no color change

TSI QC

A/A G → e. coli

K/A, H₂S⁺ → salmonella species

TSI results

slant

yellow - acid (use of sucrose/lactose)

red - alkaline (aerobic utilization of peptones)

butt

yellow - acid fermentation of glucose/other sugars

gas production

splitting of media/gas bubbles

H₂S⁺ production

blackening of media