1. Define the following terms: sterilization, disinfection, and sanitization. How are each of these terms different from one another?

2. Compare and contrast selective media and differential media. Give examples of each a selective type of media and differentia media that are used in microbiology:

3. Briefly describe how the following identification techniques are used to identify and classify microorganisms:

a) Morphology
b) Physiological/Biochemical Characteristics
c) Genetic analysis

4. Define the following terms used to describe bacterial morphology or bacterial arrangements. Give examples of specific organisms that are representatives of each category for both Morphology AND Arrangements. For example: an example of a cocci organism is Staphylococcus aureus
a) Morphology:
1. Cocci –
2. Bacilli –
3. Vibrios
4. Spirilla
5. Spirochete –
b) Arrangements (don’t forget to include examples here as well):
1. Diplo –
2. Strepto-
3. Staphlo-

5. Describe the four (4) different stages of the bacterial population growth curve:

6. Describe briefly how the following factors influence microbial growth:
a) Temperature
b) pH
c) Osmotic Pressure
d) Atmospheric conditions (presence or absence of oxygen)

 

 

 
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