Nitrate reduction is responsible for __________.

Which of the following indicates a negative oxidase test?  

The peptone in the EMB agar serves as a(n) __________.

Eosin methylene blue agar is used to __________.

MacConkey agar is used to isolate and differentiate members of the Enterobacteriaceae based on the ability to ferment lactose.

Gas in the Durham tube during the nitrate reduction test is a possible indication that __________ has occurred.

Chemicals that develop color as they become oxidized are known as __________.

Is hemolysin activity of Streptococci best under aerobic or anaerobic conditions? _________________

This tool is known as a(n) __________.

The difference between antibiotics and antimicrobials is __________.