MICR 351L Final Exam Questions and
Answers
m-Endo agar LES - Answer-promotes gram(-) growth and inhibits gram(+) growth
used for coliforms
Coliforms - Answer-microbes that ferment lactose in fecal contaminated areas
Membrane Filter Technique - Answer-Used to test the amount of fecal contamination in a water sample
Multi Tube Fermentation Method - Answer-Using statistical data to calculate the amount of coliforms
per 100 mL of water sample.
What is the equation for MPN? - Answer-MPN = 100P/sqrt(VnVa)
What is the inhibitory reagent for LTB? - Answer-Sodium lauryl sulfate
What is the inhibitory reagent for BGLB and EC? - Answer-Oxgal (bile)
Answers
m-Endo agar LES - Answer-promotes gram(-) growth and inhibits gram(+) growth
used for coliforms
Coliforms - Answer-microbes that ferment lactose in fecal contaminated areas
Membrane Filter Technique - Answer-Used to test the amount of fecal contamination in a water sample
Multi Tube Fermentation Method - Answer-Using statistical data to calculate the amount of coliforms
per 100 mL of water sample.
What is the equation for MPN? - Answer-MPN = 100P/sqrt(VnVa)
What is the inhibitory reagent for LTB? - Answer-Sodium lauryl sulfate
What is the inhibitory reagent for BGLB and EC? - Answer-Oxgal (bile)