Module 03 Homework Assignment
· Use the
information presented in the module folder along with your readings from the
textbook to answer the following questions.
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 type of media:
3. Define the
following terms used to describe bacterial morphology or bacterial arrangements
and give examples of SPECIFIC organisms that are representatives of each
category of 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:
1. Diplo –
2. Strepto-
3. Staphlo-
4. Describe the
four (4) different stages of the bacterial population growth curve:
5. Describe briefly
how the following factors influence microbial growth:
a) Temperature
b) pH
c) Osmotic Pressure
d) Atmospheric
conditions (presence or absence of oxygen)





