Rasmussen MCB2289 2019 January Module 3 Homework Assignment Latest

MCB2289 Introduction to Microbiology

Module 3 Homework Assignment

•Use the information presented in the module folder along with your readings from the textbook to answer the following questions.

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 type of media:

3.Define the following terms used to describe bacterial morphology or bacterial arrangements andgive examples of SPECIFIC organisms that are representatives of each category of MorphologyANDArrangements. 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)