Microbiology: A Systems Approach 4th Edition by Marjorie Kelly Cowan

Exercise 35

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.
A) Create a paragraph to differentiate among the following terms: positive stain, negative stain, simple stain, and differential stain.
B) For each of the following scenarios, explain which staining technique(s) should be used.
• analyzing cell wall composition
• observing structures for locomotion
• identifying a structure enhancing pathogenicity