Question 1

In which way are archaea and eukaryotes the same?

Accepted Answer

A) Have a cell wall for rigidity 
B) Can use flagella for movement 
C) Contain mitochondria for energy production 
D) Contain membrane-bound organelles 
A) Have a cell wall for rigidity 
B) Can use flagella for movement 
C) Contain mitochondria for energy production 
D) Contain membrane-bound organelles

Question 2

Select the correct descending taxonomic hierarchy (left to right).

Accepted Answer

A) Class, phylum, order 
B) Family, genus, species 
C) Kingdom, domain, phylum 
D) Family, order, class 
E) Genus, species, family 
A) Class, phylum, order 
B) Family, genus, species 
C) Kingdom, domain, phylum 
D) Family, order, class 
E) Genus, species, family

Question 3

The smallest and most significant taxon is a ______.

Accepted Answer

A) kingdom 
B) phylum 
C) species 
D) family 
E) genus 
A) kingdom 
B) phylum 
C) species 
D) family 
E) genus

Question 4

Many chronic infections are caused by microbes that associate in communities termed ______.

Accepted Answer

A) biofilms 
B) virions 
C) microbiota 
D) sediments 
A) biofilms 
B) virions 
C) microbiota 
D) sediments

Question 5

A scientist studying the sequence of nucleotides in the rRNA of a bacterial species is working on

Accepted Answer

A) recombinant DNA. 
B) nomenclature. 
C) determining evolutionary relatedness. 
D) bioremediation. 
E) determining if that species is the cause of a new disease. 
A) recombinant DNA. 
B) nomenclature. 
C) determining evolutionary relatedness. 
D) bioremediation. 
E) determining if that species is the cause of a new disease.

Question 6

The three cell types discussed, eukaryotes, archaea, and bacteria, all derived from ______.

Accepted Answer

A) cells with a true nucleus 
B) the last universal common ancestor 
C) photosynthetic bacteria 
D) archaea 
A) cells with a true nucleus 
B) the last universal common ancestor 
C) photosynthetic bacteria 
D) archaea

Question 7

The sum total of all the microbes in a certain environment is termed the ______.

Accepted Answer

A) microbiome 
B) microbial niche 
C) domain 
D) biofilm 
E) phylogeny 
A) microbiome 
B) microbial niche 
C) domain 
D) biofilm 
E) phylogeny

Question 8

Which of the following is a traditional human use of microorganisms?

Accepted Answer

A) Baking bread 
B) Cleaning up oil spills 
C) Treating water and sewage 
D) Mass-producing antibiotics 
A) Baking bread 
B) Cleaning up oil spills 
C) Treating water and sewage 
D) Mass-producing antibiotics

Question 9

The first cells appeared about ___ billion years ago.

Accepted Answer

A) 5 
B) 4.5 
C) 3.5 
D) 2 
E) 1 
A) 5 
B) 4.5 
C) 3.5 
D) 2 
E) 1

Question 10

The microorganisms that recycle nutrients by breaking down dead matter and wastes are called ______.

Accepted Answer

A) fermenters 
B) eukaryotes 
C) decomposers 
D) pathogens 
E) prokaryotes 
A) fermenters 
B) eukaryotes 
C) decomposers 
D) pathogens 
E) prokaryotes

Question 11

Sterile refers to ______.

Accepted Answer

A) homogenized 
B) absence of any life forms and viral particles 
C) pathogen-free 
D) pasteurized 
E) absence of spores 
A) homogenized 
B) absence of any life forms and viral particles 
C) pathogen-free 
D) pasteurized 
E) absence of spores

Question 12

Studies of the immune response to an infection caused by microorganisms would be performed by a(n) ______.

Accepted Answer

A) hypersensitivity specialist 
B) immunologist 
C) geomicrobiologist 
D) epidemiologist 
A) hypersensitivity specialist 
B) immunologist 
C) geomicrobiologist 
D) epidemiologist

Question 13

Helminths are ______.

Accepted Answer

A) molds 
B) parasitic worms 
C) bacteria 
D) protozoa 
E) infectious particles 
A) molds 
B) parasitic worms 
C) bacteria 
D) protozoa 
E) infectious particles

Question 14

The names of the three proposed domains are: Bacteria, Protista, and Eukarya.

Accepted Answer

A) True 
 B)False

Question 15

Among the types of microorganisms, the ______ are noncellular.

Accepted Answer

A) protozoans 
B) bacteria 
C) viruses 
D) helminths 
A) protozoans 
B) bacteria 
C) viruses 
D) helminths

Question 16

Koch's postulates are criteria used to establish that

Accepted Answer

A) microbes are found on dust particles. 
B) a specific microbe should be classified in a specific kingdom. 
C) microbes can be used to clean up toxic spills. 
D) a specific microbe is the cause of a specific disease. 
E) life forms can only arise from preexisting life forms. 
A) microbes are found on dust particles. 
B) a specific microbe should be classified in a specific kingdom. 
C) microbes can be used to clean up toxic spills. 
D) a specific microbe is the cause of a specific disease. 
E) life forms can only arise from preexisting life forms.

Question 17

Eukaryotic cells are larger than bacterial or archaeal cells; all cells are larger than macromolecules.Where do viruses fit on this scale?

Accepted Answer

A) Viruses are smaller than eukaryotic cells, but larger than bacterial or archaeal cells. 
B) Viruses are smaller than macromolecules. 
C) Viruses are larger than eukaryotic cells. 
D) Viruses are smaller than bacterial or archaeal cells, but larger than macromolecules. 
A) Viruses are smaller than eukaryotic cells, but larger than bacterial or archaeal cells. 
B) Viruses are smaller than macromolecules. 
C) Viruses are larger than eukaryotic cells. 
D) Viruses are smaller than bacterial or archaeal cells, but larger than macromolecules.

Question 18

The number one worldwide infectious diseases are ______.

Accepted Answer

A) AIDS-related diseases 
B) malaria and other protozoan diseases 
C) respiratory diseases 
D) measles and other rash diseases 
E) diarrheal diseases 
A) AIDS-related diseases 
B) malaria and other protozoan diseases 
C) respiratory diseases 
D) measles and other rash diseases 
E) diarrheal diseases

Question 19

Which of the following are not considered microorganisms?

Accepted Answer

A) Fungi 
B) Protozoa 
C) Viruses 
D) Bacteria 
E) Mosquitoes 
A) Fungi 
B) Protozoa 
C) Viruses 
D) Bacteria 
E) Mosquitoes

Question 20

A recently-developed mnemonic for remembering the taxonomic levels from Domain to Species is "Dumb Kids Prefer Candy Over Fancy Green Salad." The word "candy" here is a reminder of the taxonomic level of _______.

Accepted Answer

A) chain 
B) culture 
C) category 
D) colony 
E) class 
A) chain 
B) culture 
C) category 
D) colony 
E) class

Exam 1: The Main Themes of Microbiology

In which way are archaea and eukaryotes the same?

Select the correct descending taxonomic hierarchy (left to right).

The smallest and most significant taxon is a ______.

Many chronic infections are caused by microbes that associate in communities termed ______.

A scientist studying the sequence of nucleotides in the rRNA of a bacterial species is working on

The three cell types discussed, eukaryotes, archaea, and bacteria, all derived from ______.

The sum total of all the microbes in a certain environment is termed the ______.

Which of the following is a traditional human use of microorganisms?

The first cells appeared about ___ billion years ago.

The microorganisms that recycle nutrients by breaking down dead matter and wastes are called ______.

Sterile refers to ______.

Studies of the immune response to an infection caused by microorganisms would be performed by a(n) ______.

Helminths are ______.

The names of the three proposed domains are: Bacteria, Protista, and Eukarya.

Among the types of microorganisms, the ______ are noncellular.

Koch's postulates are criteria used to establish that

Eukaryotic cells are larger than bacterial or archaeal cells; all cells are larger than macromolecules.Where do viruses fit on this scale?

The number one worldwide infectious diseases are ______.

Which of the following are not considered microorganisms?

A recently-developed mnemonic for remembering the taxonomic levels from Domain to Species is "Dumb Kids Prefer Candy Over Fancy Green Salad." The word "candy" here is a reminder of the taxonomic level of _______.

The Chemistry of Biology

Tools of the Laboratory: Methods for the Culturing of Microscopic Analysis of Microorganisms

Bacteria and Archaea

Eukaryotic Cells and Microorganisms

An Introduction to the Viruses

Microbial Nutrition, Ecology, and Growth

Microbial Metabolism: The Chemical Crossroads of Life

Microbial Genetics

Genetic Engineering and Recombinant Dna

Physical and Chemical Control of Microbes

Antimicrobial Treatment

Microbe-Human Interactions: Health and Disease

Host Defenses I: Overview and Nonspecific Defenses

Host Defenses II: Specific Immunity and Immunization

Disorders in Immunity

Diagnosing Infections

Infectious Diseases Affecting the Skin and Eyes

Infectious Diseases Affecting the Nervous System

Infectious Diseases Affecting the Cardiovascular and Lymphatic Systems

Infectious Diseases Affecting the Respiratory System

Infectious Diseases Affecting the Gastrointestinal Tract

Infectious Diseases Affecting the Genitourinary System

Microbes and the Environment

Applied Microbiology and Food and Water Safety

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