Study Guide for Exam 1 in HSCI 2230

Posted on September 10, 2010 by

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HSCI 2230                                                Introduction to Microbiology                        Spring 2006

Powers                                                                Study guide for exam 1

Outline of unit 1

Introduction to the molecules that make up living things

What are membranes?

What are bacteria?

What are viruses?

How do bacteria grow?

How do materials get in to and out of cells? (membrane transport)

How can microbes be removed from objects and prevented from growing? (microbial control)

Set 1 terms –  You are responsible for understanding the meaning of the following terms.  We may or may not go over them in class. However, you are welcome to ask questions regarding the terms during class.

pathogens                        capsomers                        isotonic

emerging diseases            bacteriophage                        hypertonic

reemerging diseases            prophage                        hypotonic

zoonosis                        cell line                         binary fission

chemotaxis                        monolayer                        energy of activation

lysis                                    prion                                    chemostat

sporulation                        viroids                                     sanitization

germination                        plaques                         degermination

saprobes vs parasites             pasteurization

January 19 R Read “A Note to Students” pxxii-xxiii, Chapter Overview p1-2, p6-8, p40–53

  1. List the 4 families of macromolecules and several key characteristics of each.
  2. What is a membrane? Draw a generalized fluid mosaic model of a cell membrane.
  3. Differentiate between procaryotic and eucaryotic cells.
  4. List 6 processes that define life.

January 24 T p87-107 & p159-176

  1. Describe the structure and function of the flagella, axial filaments, fimbriae, pilli and glycocalyx.
  2. What are biofilms and why are they important?
  3. Draw a Gram positive and a Gram negative cell wall. VERY IMPORTANT.
  4. Describe the structure and function of ribosomes.
  5. List several characteristics of endospores.
  6. Draw the 3 bacterial shapes.
  7. Study Table 6.1. The Novel Properties of Viruses.
  8. What is the structure and function of the capsid? What are the 2 types of capsids?
  9. What are the 6 steps in the bacteriophage replication cycle?
  10. What is lysogeny?
  11. How does the replication of animal viruses differ from bacteriophage replication?

January 26 R Read p176-183, p186-200

  1. Describe several cytopathic effects of viruses. (how they damage host cells)
  2. What are 3 ways of cultivating animal viruses?
  3. Why are viruses more difficult to treat than bacterial diseases?
  4. List several diseases caused by viruses.
  5. How are viral diseases diagnosed?
  6. Create a chart differentiating among the following membrane transport processes: simple diffusion, osmosis, facilitated diffusion, active transport and group translocation.

January 31 T Read p201-211, p217-225, p319-325

  1. What are 3 ecological groups base on temperature preference?
  2. What are 5 groups of bacteria based on their oxygen requirements?
  3. How does pH affect cells?
  4. How does osmotic pressure affect cells?
  5. What are 3 types of symbiosis?
  6. What are 2 types of non-symbiotic microbial associations?
  7. Draw a growth curve and explain what happens during each phase.
  8. Differentiate among metabolism, catabolism, and anabolism.
  9. Study Table 8.1. The Checklist of Enzyme Characteristics.
  10. How is ATP used to couple anabolism and catabolism?
  11. What type of organisms are the most resistant to physical and chemical methods of control? Least resistant?
  12. What is the difference between sterilization and disinfection?
  13. What factors influence the action of antimicrobial agents?

February 2 R p326-346

  1. Describe how each of the following physical methods suppresses microbial growth.
    1. heat
    2. cold
    3. desiccation
    4. ionizing and nonionizing radiation
    5. filtration
  2. Describe how each of the following chemical agents are commonly used.
    1. halogens
    2. phenol & its derivatives
    3. alcohols
    4. hydrogen peroxide
    5. detergents
    6. heavy metal compounds
    7. aldehydes
    8. gaseous sterilants

Catch up and review – look over all of your notes and ask questions about anything that is not clear.

These end of the chapter multiple choice study questions are for your own review and not to be turned in. Don’t be surprised if you see them again. Answers on p E-1

Chapter 1:  4, 14

Chapter 2:  17-24

Chapter 4:  1-6, 9

Chapter 6: 1-15

Chapter 7:  1-12, 14-16

Chapter 8:  1-10

Chapter 11: 1-11, 13, 15, 16

February 7 T Exam 1

“…success lies in forming the habit of doing things that

failures don’t like to do.”- Albert. E. N. Gray

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