Foundations in Microbiology 9th Edition by Kathleen Park Talaro, Barry Chess

Exercise 2

Critical thinking is the ability to reason and solve problems using facts and concepts. These questions can be approached from a number of angles, and in most cases, they do not have a single correct answer.
Identify the genera with the following characteristics from figure 20.9:
a. Lactose (-), phenylalanine and urease (-), citrate (+), ONPG (-)
b. Lactose (+), motility (-), VP (2), indole (+)
c. Lactose (+), motility (1), indole (-), H ₂ S (+)
d. Lactose (-), phenylalanine and urease (+), H ₂ S (-), citrate (+)