BROCK BIOLOGY OF MICROORGANISMS
,Brock Biology Of Microorganisms, 15e (Madigan/Martinko)
Chapter 1: Microorganisms And Microbiology
Multiple Choice
1) Which Statement Is Not True As A General Rule?
A) Microbial Cells Exist As Single Cells Or In Cell Clusters.
B) Microbial Cells Carry Out Their Life Processes Independently.
C) Microbial Cells Include Both Bacteria And Viruses.
D) Microbial Cells Exclude The Cells Of Plants And
Animals. Answer: C
2) Basic Microbiology Can Be Used To
A) Probe The Nature Of Life Processes.
B) Study Biochemical Properties Common To All Cells.
C) Model Our Understanding Of Cell Function In Higher Organisms.
D) All Of The
Above. Answer: D
3) Applied Microbiology Deals With Problems In
A) Medicine.
B) Agriculture.
C) Industry.
D) All Of The
Above. Answer: D
4) The Greatest Source Of Biomass On Earth Comes From
A) Prokaryotic Cells.
B) Plants.
C) Animals.
D) Plants And Animals
Together. Answer: A
5) The Cell's Genetic Information Is Found In The
A) Cell Membrane.
B) Nucleus Or Nucleoid.
C) Cytoplasm.
D) None Of The
Above. Answer: B
6) Because The Cell Communicates, Exchanges Materials With Its Environment, And Undergoes Change, It
Is
Called A(N)
A) Ancestral System.
B) Dynamic Entity.
,C) Closed System.
D) Nucleoid
System. Answer: B
7) Changes In Cellular Characteristics Are Transmitted To Offspring Through The Process Of
A) Chemical Signaling.
B) Reproductive Initiative.
C) Evolution.
D) None Of The
Above. Answer: C
8) Catalysts Involved In The Acceleration Of The Rate Of Chemical Reactions Are Called
A) Catalytic Converters.
B) Growth Agents.
C) Evolutionary Molecules.
D) Enzymes
. Answer: D
9) Regarding Early Life On Earth:
A) Microbial Life Existed On Earth For Billions Of Years Before Plant And Animal Life.
B) Microbial Life Existed On Earth Long Before Animals But Has Been Around For About The Same
Amount Of Time As Plants.
C) Microbial Life, Plant Life, And Animal Life All Appeared At About The Same Time.
D) It Is Impossible To Determine Which Type Of Life First Appeared On
Earth. Answer: A
10) Most Prokaryotic Cells Reside
A) On The Earth's Surface.
B) In The Earth's Lakes, Rivers, And Oceans.
C) In And On Non-Prokaryotic Organisms (Including Humans And Other Animals).
D) In The Oceanic And Terrestrial
Subsurfaces. Answer: D
11) The Person Who Described The "Wee Animalcules" Was
A) Hooke.
B) Van Leeuwenhoek.
C) Pasteur.
D) Cohn.
Answer: B
12) Fannie Hesse Is Credited With Giving
The Ideas For Using Agar As A Solidifying Agent.
A) Pasteur
,B) Cohn
C) Koch
D) Winogradsky
Answer: C
13) Which Of The Following Is/Are Characteristic Of Cellular Organisms?
A) Metabolism
B) Reproduction
C) Communication
D) All Of The
Above Answer: D
14) Which Of The Following Is Not A Major Ecosystem?
A) Aquatic
B) Terrestrial
C) Atmospheric
D) Higher Organisms, Both Plant And
Animal Answer: C
15) Which Statement Is True?
A) Populations Are Assemblages Of Microbial Communities.
B) Microbial Communities Are Assemblages Of Populations.
C) Habitats Are Assemblages Of Microbial Communities.
D) Populations Are Assemblages Of
Habitats. Answer: B
16) The Export Of U.S. Beef To Foreign Markets Was Shut Down In 2003 Due To
A) Aids.
B) Smallpox.
C) Tuberculosis.
D) Mad Cow
Disease. Answer: D
17) During A Very Scientifically Productive Period In His Life, Pasteur Developed Vaccines For
A) Anthrax.
B) Fowl Cholera.
C) Rabies.
D) All Of The
Above. Answer: D
18) The Discovery Of Antibiotics And Other Important Chemicals Led To The Field Of
A) Industrial Microbiology.
B) Agricultural Microbiology.
C) Marine Microbiology.
, D) Aquatic Microbiology.
Answer: A
19) Microbial Sterilization Is Used To
A) Decrease The Possibility Of Contaminants Growing In A Culture.
B) Kill Bacteria But Not Necessarily Viruses Or Other Microbes.
C) Kill All Microbes In Or On Objects.
D) Clean A Work
Area.
Answer: C
20) Flat Covered Dishes Used For Growing Microbes Are Most Commonly Called
A) Petri Dishes.
B) Baker Dishes.
C) Sterilization Plates.
D) Culture Medium
Plates. Answer: A
21) Microbes Playing A Role In Nitrogen Fixation In Plants Live In While Those Playing A Role In The
Digestive Tract Of Certain Herbivores Live In .
A) Rumens / Nodules
B) Nodules / Rumens
C) Nodules / Fortrans
D) Fortrans /
Rumens Answer: B
22) Genetic Engineering Could Best Be Described As
A) The Creating Of Life From Non-Life.
B) The Artificial Manipulation Of Genes And Their Products.
C) The Treating Of Diseases With Synthetic Drugs.
D) The Expansion Of The Biomass To Meet Specific
Needs. Answer: B
23) The Ultimate Downfall Of The Theory Of Spontaneous Generation Was The Result Of Work By
A) Pasteur.
B) Koch.
C) Hooke.
D) Leeuwenhoek.
Answer: A
24) A Pasteur Flask Has A(N)
A) Swan Neck To Prevent Air Particles From Getting Into The Main Body Of The Flask.
Med C File
,B) Double Neck So Two Substances May Be Added At The Same Time.
C) Secondary Opening At The Base To Allow For Drainage.
D) Inverted Upper Edge To Prevent Spillage While
Swirling. Answer: A
25) Koch's Greatest Accomplishment In The Field Of Medical Bacteriology Was With
A) Escherichia Coli.
B) Bacillus Subtilis.
C) Mycobacterium Tuberculosis.
D) Bacillus Cereus. Answer: C
26) A Pure Culture
A) Is Sterile.
B) Has Only One Type Of Organism Growing In Or On It.
C) Is Made Of A Clearly Defined Chemical Medium.
D) Was Cultured For A Certified Stock Culture. Answer: B
27) Beijerinck Was The First To Isolate
A) Many Soil And Aquatic Microorganisms.
B) Certain Aerobic Nitrogen Fixing Bacteria.
C) Certain Sulfate Reducing Bacteria.
D) All Of The Above. Answer: D
28) Chemolithotrophy Involves The
A) Oxidation Of Organic Compounds.
B) Oxidation Of Inorganic Compounds.
C) Reduction Of Organic Compounds.
D) Metabolic Autotrophy. Answer: B
29) Advances In Immunology And Medical Microbiology Are, Most Specifically, Practical
Extensions Of The Work Of
A) Winogradsky.
B) Leeuwenhoek.
C) Lister.
D) Koch.
Answer: D
30) Microbial Control In Wastewater Treatment Plants Would Most Logically Be A Part Of
A) Microbial Genetics.
B) Microbial Ecology.
C) Microbial Technology.
,D) Bacterial Energetics. Answer: B
31) Viruses That Attack Bacteria Are Known As
A) Bacterial Consumers.
B) Bacteriophages.
C) Microphages.
D) Viroids. Answer: B
32) Without Microorganisms, All Higher Life Forms On Earth Would Cease To Exist. Answer: True
33) Most Microorganisms Are Pathogenic. Answer: False
34) All Microorganisms Require Molecular Oxygen To Carry On Life
Functions. Answer: False
35) Metabolism Is Common To All Living
Organisms. Answer: True
36) According To Our Present Understanding, Each Of The Major Domains Has What Is Known As
Its Own Universal Ancestor.
Answer: False
37) Microbiology As A Distinct Science Did Not Develop Until The Eighteenth
Century. Answer: False
38) The Location In An Environment Where A Population Lives Is The
Habitat. Answer: True
39) Differentiation Occurs Only In Multi-Cellular
Organisms. Answer: False
40) The Study Of Nutrients That Microorganisms Require Is Known As Microbial Systematics.
Answer: False
41) Smallpox Is A Major Killer In Parts Of The Developing
World. Answer: False
42) Winogradsky Worked With Soil Bacteria Involved In Cycling Nitrogen And Sulfur. Answer: True
43) The Four Macromolecules Common To All Cells Are: , , , And .
Answer: Protein / Lipid / Carbohydrate / Nucleic Acid (Any Order)
,44) Our Concept Of What Is Alive Is Constrained By .
Answer: What We Can Observe On Earth Or Deduce From The Fossil Record
45) The Study Of The Physical And Chemical Structure Of Microorganisms Would Be A Part Of
Microbial . Answer: Cytology
46) List Three Contributions Of Ferdinand Cohn To The Development Of Microbiology.
Answer: Answers Could Possibly Include: Founding Bacteriology As A Separate Science, Studying
Beggiatoa, Discovering The Genus Bacillus (Along With Its Endospore Formation And Its Life Cycle),
Devising Methods To Prevent Contamination, And Founding A Major Scientific Journal.
47) The Process Whereby Microorganisms Are Used To Help Clean Up Pollution Created By Human
Activities Is Known As .
Answer: Bioremediation
48) An Ecosystem Could Be Defined As
Along With Their . Answer: Living Organisms / Chemical And Physical Environments
49) The First And Foremost Instrument Of The Microbiologist Is The .
Answer: Microscope
50) Robert Koch Received The 1905 Nobel Prize For Physiology Or Medicine For . Answer: His
Work With The Tuberculosis Bacterium
51) The Disease Anthrax Is Caused By The Organism Which Produces Heat- Resistant
Structures Known As . Answer: Bacillus Anthracis / Endospores
52) Microbial Biochemistry Involves The Discovery And The . Answer: Microbial Enzymes /
Of Chemical Reactions They Carry Out
53) Nucleic Acid Sequencing Has Allowed For The Development Of The Field Of And
The Subdiscipline Of .
Answer: Genomics / Proteomics
54) Explain The Nature And Function Of An Enrichment Culture.
,Answer: Answers Will Vary, But An Enrichment Culture Uses Media, Chemicals Or Culture Conditions
To Select For Or Enhance Specific Characteristics Of An Organism
55) Why Is It Incorrect To Say An Object Is Partially Sterile?
Answer: Answers Will Vary, But Sterile Means The Absence Of Living Organisms. Something Is Either
Sterile Or It Is Not.
56) The Microbes Were First Formally Observed In The Mid-1600s, But The Cell Theory Wasn't
Enunciated Until 1839. Write A Brief Essay Explaining Why Microbiology Did Not Become A Formally
Recognized Science Until Pasteur's And Koch's Time.
57) Compare And Contrast The Works Of Louis Pasteur And Robert Koch In Terms Of Both Applied
And Basic Science.
58) Explain Why Microbial Cells Are Excellent Models For Understanding Cell Function In Higher
Organisms. Answer: Answers Will Vary But Should Include Commonality Of Function, Biochemical And
Genetic Similarities, And Ease And Speed With Which They Can Be Grown In Large Quantities.
59) Compare And Contrast The Leading Causes Of Death In 1900 With The Leading Causes Of
Death Today. What Roles Have Microbiologists Played In The Dramatic Changes Which Are
Evident?
60) Consider Hypothetical Disease X. How Would Koch's Postulates Be Used To Demonstrate
Whether Or Not Organism Y Is The Causative Agent Of Disease X?
61) Explain How Bacteria Can Be Both Beneficial And Detrimental To The Food Industry.
62) Describe Some Of The Essential Functions Which Must Be Encoded By A "Minimalist Genome."
Answer: Answers Will Vary, But Should Minimally Include Metabolism, Reproduction, Communication,
And Ability To Evolve. Some Answers May Include Differentiation And Movement.
Chapter 2: An Overview Of Microbial Life
1) The Presence Of Membrane-Enclosed Organelles Is A Characteristic Of
, A) Prokaryotic Cells.
B) Eukaryotic Cells.
C) All Cells.
D) Viruses. Answer: B
2) Which Of The Following Are Made Up Of Prokaryotic Cells?
A) Bacteria And Fungi
B) Archaea And Fungi
C) Protozoa And Animals
D) Bacteria And Archaea Answer: D
3) Protein Coding Sequences Of Dna Are Known As
A) Rna Segments.
B) Chromosomes.
C) Genes.
D) Histones. Answer: C
4) Based On Our Present Understanding, Which Statement Is Probably True?
A) Bacteria And Archaea Diverged From A Eukarya Ancestor.
B) Bacteria And Eukarya Evolved From An Archaeal Ancestor.
C) Bacteria And Eukarya Evolved From One Line; Archaea Had A Totally Different Ancestor.
D) Bacteria, Archaea, And Eukarya All Diverged From A Common Universal Ancestor Or
Community Of Organisms.
Answer: D
5) Disease-Causing Prokaryotes Are Found Exclusively Among The
A) Archaea.
B) Bacteria.
C) Fungi.
D) Viruses. Answer: B
6) Organisms Most Likely To Be Found In Extreme Environments Are
A) Archaea.
B) Bacteria.
C) Fungi.
D) Viruses. Answer: A
[Type here]