Which is NOT used as a chemical preservative in food?   

Which is true about Koch’s postulates?

Match the following characteristics with Gram-positive or Gram-negative bacteria.  

Match the following characteristics with Gram-positive or Gram-negative bacteria.  

The bacterial shape that is gently spherical is called   

The cells that are viable but cannot be grown on all media are called

Characteristics of the environment outside of the food affecting microbial growth are called ____________________________.    

A toxin made of lipopolysaccharide (LPS), that is not secreted but is released after the cell is damaged is  

In 2013, there was a foodborne outbreak caused by Listeria in prepackaged refrigerated spinach. An FDA investigation found the California plant producing the spinach product washed the spinach in lukewarm water prior to packaging.  Plant documentation showed the water was to be tested for pathogens every hour during production. However, the water had not been tested nor filtered the two days prior to the first outbreak case. What was the reservoir for this pathogen?

The ________________ rate is the total number of deaths in the population due to a given disease, while the ____________________ is the number of people afflicted with a certain disease.