Question 1

The system by which organisms are named is referred to as

Accepted Answer

A) systematics. 
B) naming. 
C) nomenclature. 
D) cladistics. 
A) systematics. 
B) naming. 
C) nomenclature. 
D) cladistics. C

Question 2

Within a lab, a scientist has two samples-the first is a prion sample, while the second is a viroid sample. But those pesky labels have come off of the flasks! She wants to run a simple analysis to determine which one is which. What type of molecule would she look for to determine which one is which?

Accepted Answer

A) lipids 
B) DNA 
C) protein 
D) polysaccharides 
A) lipids 
B) DNA 
C) protein 
D) polysaccharides C

Question 3

The cell types which lack a membrane bound nucleus are found in the

Accepted Answer

A) eukaryotes. 
B) prokaryotes. 
C) archaea. 
D) protista. 
E) prokaryotes AND archaea. 
A) eukaryotes. 
B) prokaryotes. 
C) archaea. 
D) protista. 
E) prokaryotes AND archaea. E

Question 4

Viroids

Accepted Answer

A) are naked (lacking a protein shell) pieces of RNA. 
B) are naked (lacking a protein shell) pieces of DNA. 
C) are known to cause neurodegenerative diseases in animals. 
D) are composed of protein encasing DNA. 
E) are known to cause neurodegenerative diseases in animals AND are composed of protein encasing DNA. 
A) are naked (lacking a protein shell) pieces of RNA. 
B) are naked (lacking a protein shell) pieces of DNA. 
C) are known to cause neurodegenerative diseases in animals. 
D) are composed of protein encasing DNA. 
E) are known to cause neurodegenerative diseases in animals AND are composed of protein encasing DNA.

Question 5

Diseases such as ulcers and cardiovascular disease

Accepted Answer

A) have been shown to be, or may be due to, a bacterial infection. 
B) are solely due to lifestyle. 
C) are solely due to genetics. 
D) are due to new mutations in bacteria. 
A) have been shown to be, or may be due to, a bacterial infection. 
B) are solely due to lifestyle. 
C) are solely due to genetics. 
D) are due to new mutations in bacteria.

Question 6

Which is/are the correct form(s)?

Accepted Answer

A) Staphylococcus aureus 
B) Staphylococcus aureus. 
C) staphylococcus aureus 
D) S.aureus 
E) Staphylococcus aureus AND S.aureus 
A) Staphylococcus aureus 
B) Staphylococcus aureus. 
C) staphylococcus aureus 
D) S.aureus 
E) Staphylococcus aureus AND S.aureus

Question 7

Thiomargarita namibiensis could not be a eukaryote because it is only 1mm in width.

Accepted Answer

A) True 
 B)False

Question 8

Eucarya

Accepted Answer

A) consist of only multicellular organisms. 
B) have a more complex internal structure than Archaea or Bacteria. 
C) have a simpler internal structure than Archaea or Bacteria. 
D) have a membrane around the DNA. 
E) have a more complex internal structure than Archaea or Bacteria AND have a membrane around the DNA. 
A) consist of only multicellular organisms. 
B) have a more complex internal structure than Archaea or Bacteria. 
C) have a simpler internal structure than Archaea or Bacteria. 
D) have a membrane around the DNA. 
E) have a more complex internal structure than Archaea or Bacteria AND have a membrane around the DNA.

Question 9

Bacteria

Accepted Answer

A) are not found on our bodies. 
B) are only found on small select parts of our bodies. 
C) provide protection to us from disease by covering our bodies, crowding out 'bad' invading bacteria. 
D) always cause disease when growing on our bodies. 
A) are not found on our bodies. 
B) are only found on small select parts of our bodies. 
C) provide protection to us from disease by covering our bodies, crowding out 'bad' invading bacteria. 
D) always cause disease when growing on our bodies.

Question 10

The size of an organism determines its domain.

Accepted Answer

A) True 
 B)False

Question 11

Viroids are naked (lacking a protein shell) pieces of DNA that infect plants.

Accepted Answer

A) True 
 B)False

Question 12

Viruses and bacteria are both based on the unit of a cell.

Accepted Answer

A) True 
 B)False

Question 13

Although it is said that the twentieth century was the Age of Physics, it is predicted that the twenty-first century will be the age of

Accepted Answer

A) chemistry. 
B) computers. 
C) microbial biodiversity. 
D) mathematics. 
A) chemistry. 
B) computers. 
C) microbial biodiversity. 
D) mathematics.

Question 14

Bacteria are present on the body

Accepted Answer

A) only during disease-causing infections. 
B) constantly. 
C) only in certain restricted areas. 
D) never. 
A) only during disease-causing infections. 
B) constantly. 
C) only in certain restricted areas. 
D) never.

Question 15

Bacteria are good models to use because they

Accepted Answer

A) are large in size. 
B) share many biochemical/physiological properties with more complicated organisms. 
C) can be assembled into multicellular organisms. 
D) have complicated growth requirements. 
A) are large in size. 
B) share many biochemical/physiological properties with more complicated organisms. 
C) can be assembled into multicellular organisms. 
D) have complicated growth requirements.

Question 16

Viruses may only be grown

Accepted Answer

A) in sterile, cell-free chemical growth media. 
B) in living cells. 
C) at body temperature. 
D) in darkness. 
A) in sterile, cell-free chemical growth media. 
B) in living cells. 
C) at body temperature. 
D) in darkness.

Question 17

A microbiologist obtained two pure isolated biological samples: one of a virus, and one of a viroid. The labels came off during a move from one lab to the next, however. The scientist felt she could distinguish between the two samples by analyzing for the presence of a single type of molecule. What type of molecule would she be looking for to differentiate between the two?

Accepted Answer

A) DNA 
B) protein 
C) lipids 
D) RNA 
A) DNA 
B) protein 
C) lipids 
D) RNA

Question 18

The smallest organism is probably determined by

Accepted Answer

A) the number of molecules necessary for its growth and replication. 
B) the size of the molecules necessary for its growth and replication. 
C) its membrane. 
D) its volume. 
E) the number of molecules necessary for its growth and replication AND the size of the molecules necessary for its growth and replication. 
A) the number of molecules necessary for its growth and replication. 
B) the size of the molecules necessary for its growth and replication. 
C) its membrane. 
D) its volume. 
E) the number of molecules necessary for its growth and replication AND the size of the molecules necessary for its growth and replication.

Question 19

Viruses, viroids and prions all

Accepted Answer

A) operate intracellularly. 
B) may be considered acellular agents of disease. 
C) contain DNA. 
D) infect only animals. 
E) operate intracellularly AND may be considered acellular agents of disease. 
A) operate intracellularly. 
B) may be considered acellular agents of disease. 
C) contain DNA. 
D) infect only animals. 
E) operate intracellularly AND may be considered acellular agents of disease.

Question 20

The idea of Spontaneous Generation postulated that

Accepted Answer

A) organisms could evolve into the next generation of organisms. 
B) organisms could spontaneously combust. 
C) organisms could spontaneously arise from other living organisms. 
D) living organisms could spontaneously arise from non-living material. 
A) organisms could evolve into the next generation of organisms. 
B) organisms could spontaneously combust. 
C) organisms could spontaneously arise from other living organisms. 
D) living organisms could spontaneously arise from non-living material.

Exam 1: Humans and the Microbial World

The system by which organisms are named is referred to as

The cell types which lack a membrane bound nucleus are found in the

Viroids

Diseases such as ulcers and cardiovascular disease

Which is/are the correct form(s)?

Thiomargarita namibiensis could not be a eukaryote because it is only 1mm in width.

Eucarya

Bacteria

The size of an organism determines its domain.

Viroids are naked (lacking a protein shell) pieces of DNA that infect plants.

Viruses and bacteria are both based on the unit of a cell.

Although it is said that the twentieth century was the Age of Physics, it is predicted that the twenty-first century will be the age of

Bacteria are present on the body

Bacteria are good models to use because they

Viruses may only be grown

The smallest organism is probably determined by

Viruses, viroids and prions all

The idea of Spontaneous Generation postulated that

The Molecules of Life

Microscopy and Cell Structure

Dynamics of Prokaryotic Growth

Control of Microbial Growth

Metabolism: Fueling Cell Growth

The Blueprint of Life, From Dna to Protein

Bacterial Genetics

Biotechnology and Recombinant Dna

Identification and Classification of Prokaryotes

The Diversity of Prokaryotic Organisms

The Eukaryotic Members of the Microbial World

Viruses, Viroids and Prions

The Innate Immune Response

The Adaptive Immune Response

Host-Microbe Interactions

Immunologic Disorders

Applications of Immune Responses

Epidemiology

Antimicrobial Medications

Respiratory System Infections

Skin Infections

Wound Infections

Digestive System Infections

Genitourinary Infections

Nervous System Infections

Blood and Lymphatic Infections

Hiv Disease and Complications of Immunodeficiency

Microbial Ecology

Environmental Microbiology: Treatment of Water, Wastes, and Polluted Habitats

Food Microbiology

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