Why do we always run control tubes when we are conducting biochemical tests or staining slides in micro lab? 

A color change of inoculated Simmons citrate agar from green to blue constitutes a positive test for citrate utilization.

A positive result for the catalase test is the appearance of bubbles of oxygen when a reagent is placed on the bacterial smear.  What is the reagent used in the catalase test?

What does it mean if after 48h the tube of my TSI is:                 a. All Yellow (slant and butt)                  b. All red (slant and butt..not a control there is growth):                 c. Red slant yellow butt:                 d. Red slant yellow butt with black precipitate                          e. Red slant and no color change in butt

Kovac`s reagent is added to the Vogues-Proskauer test to indicate the presence of Indole. 

What is being tested for in the oxidase test? What are the result outcomes of this test?

Why would a bacteria want to have the amylase enzyme?

Activity-Based Costing (ABC) aims to:

Which of the following is an internal failure cost?

Leading indicators are measures of: