MRVP test Flashcards
1
Q
What is acetoin
A
A neutral product from glucose
2
Q
Why ar MR AND VP considered complementary tests
A
One positive the other negative
3
Q
What pathway produces acetoin
A
Butonedial pathway
4
Q
What are two possible benefits from the production of acetoin
A
Doesent change ph immediately, alcohol kills other bacteria
5
Q
How ade these tests an indication of fermentation
A
No oxygen is allowed in, no oxygen=fermentation
6
Q
Why wouldn’t a bacterium be both MR and VP positive
A
They test for glucose so they either do or they don’t metabolize glucose
7
Q
What is theindicator for the MR reaction
A
Methyl red
