Question 1

Which one of the following characteristics most reasonably indicates that two microorganisms are closely related?

Accepted Answer

A) Both are cocci. 
B) Both ferment lactose. 
C) Their DNA can hybridize together. 
D) Both normally live in clams. 
E) Both are motile. 
A) Both are cocci. 
B) Both ferment lactose. 
C) Their DNA can hybridize together. 
D) Both normally live in clams. 
E) Both are motile.

Question 2

Serological testing is used for screening bacterial isolates for similarities.

Accepted Answer

A) True 
 B)False

Question 3

Which of the following statements about members of the Kingdom Plantae is FALSE?

Accepted Answer

A) They are multicellular. 
B) They are composed of eukaryotic cells. 
C) They undergo photosynthesis. 
D) They use organic carbon sources. 
E) They synthesize organic molecules. 
A) They are multicellular. 
B) They are composed of eukaryotic cells. 
C) They undergo photosynthesis. 
D) They use organic carbon sources. 
E) They synthesize organic molecules.

Question 4

Once a culture is purified,the next logical step in the process of identifying bacteria is biochemical testing.

Accepted Answer

A) True 
 B)False

Question 5

Serological testing is based on the fact that

Accepted Answer

A) all bacteria have the same antigens. 
B) antibodies react specifically with an antigen. 
C) the human body makes antibodies against bacteria. 
D) antibodies cause the formation of antigens. 
E) bacteria clump together when mixed with any antibodies. 
A) all bacteria have the same antigens. 
B) antibodies react specifically with an antigen. 
C) the human body makes antibodies against bacteria. 
D) antibodies cause the formation of antigens. 
E) bacteria clump together when mixed with any antibodies.

Question 6

Which of the following criteria is most useful in determining whether two organisms are related?

Accepted Answer

A) Both ferment lactose. 
B) Both are gram-positive. 
C) Both are motile. 
D) Both are aerobic. 
A) Both ferment lactose. 
B) Both are gram-positive. 
C) Both are motile. 
D) Both are aerobic.

Question 7

A bacterial species differs from a species of eukaryotic organisms in that a bacterial species

Accepted Answer

A) does not breed with other species. 
B) has a limited geographical distribution. 
C) can be distinguished from other bacterial species. 
D) is a population of cells with similar characteristics. 
E) breeds with its own species. 
A) does not breed with other species. 
B) has a limited geographical distribution. 
C) can be distinguished from other bacterial species. 
D) is a population of cells with similar characteristics. 
E) breeds with its own species.

Question 8

Table 10.1
 $$\begin{array} { | l | l | } 
\hline 1 . & 9 + 2 \text { flagella } \
\hline 2 . & \text { Nucleus } \
\hline 3 . & \text { Plasma membrane } \
\hline 4 . & \text { Peptidoglycan } \
\hline 5 . & \text { Mitochondrion } \
\hline 6 . & \text { Fimbriae } \
\hline
\end{array}$$
-In Table 10.1,which feature(s)is (are)found only in prokaryotes?

Accepted Answer

A) 1,2,3 
B) 4,6 
C) 2 
D) 1 
E) 2,4,5 
A) 1,2,3 
B) 4,6 
C) 2 
D) 1 
E) 2,4,5

Question 9

________ are a diverse group of eukaryotic organisms that are similar in rRNA sequences,but quite different from each other in motility types and ecology.They have been used previously as a "catch-all" for organisms that couldn't be easily classified into other groups.

Accepted Answer

A) Protists 
B) Fungi 
C) Plants 
D) Methanogens 
A) Protists 
B) Fungi 
C) Plants 
D) Methanogens

Question 10

Western blotting is an immunological test used to identify the antibodies in the serum of an individual suspected of having Lyme disease.

Accepted Answer

A) True 
 B)False

Question 11

For a serological bacterial identification test to be performed,you must have ________ in your possession.

Accepted Answer

A) DNA that will hybridize to the DNA of the bacterium to be identified 
B) RNA that will hybridize to the RNA of the bacterium to be identified 
C) antiserum containing antibodies that will bind to the bacterium to be identified 
D) fluorescent molecules that will light up when bound to the DNA of the bacterium 
E) viruses that will specifically infect the bacterium you're trying to identify 
A) DNA that will hybridize to the DNA of the bacterium to be identified 
B) RNA that will hybridize to the RNA of the bacterium to be identified 
C) antiserum containing antibodies that will bind to the bacterium to be identified 
D) fluorescent molecules that will light up when bound to the DNA of the bacterium 
E) viruses that will specifically infect the bacterium you're trying to identify

Question 12

The arrangement of organisms into taxa

Accepted Answer

A) shows degrees of relatedness between organisms. 
B) shows relationships to common ancestors. 
C) was designed by Charles Darwin. 
D) is arbitrary. 
E) is based on evolution. 
A) shows degrees of relatedness between organisms. 
B) shows relationships to common ancestors. 
C) was designed by Charles Darwin. 
D) is arbitrary. 
E) is based on evolution.

Question 13

Flow cytometry,where a cell is passed through a light source such as a laser beam,can directly indicate all EXCEPT which one of the following about a cell?

Accepted Answer

A) size 
B) shape 
C) density 
D) identity 
A) size 
B) shape 
C) density 
D) identity

Question 14

A genus can best be defined as

Accepted Answer

A) a taxon composed of families. 
B) a taxon composed of one or more species and a classification level lying below family. 
C) a taxon belonging to a species. 
D) a taxon comprised of classes. 
E) the most specific taxon. 
A) a taxon composed of families. 
B) a taxon composed of one or more species and a classification level lying below family. 
C) a taxon belonging to a species. 
D) a taxon comprised of classes. 
E) the most specific taxon.

Question 15

Which of the following best defines a strain in microbiological terms?

Accepted Answer

A) a pure culture that is not totally identical to other cultures of the same species 
B) a group of organisms with a limited geographical distribution 
C) a mixed population of cells,which are genetically distinct,but with highly similar phenotypic characteristics 
D) groups of cells all derived from and identical to a single parent species 
E) same as a species 
A) a pure culture that is not totally identical to other cultures of the same species 
B) a group of organisms with a limited geographical distribution 
C) a mixed population of cells,which are genetically distinct,but with highly similar phenotypic characteristics 
D) groups of cells all derived from and identical to a single parent species 
E) same as a species

Question 16

A clone is

Accepted Answer

A) genetically identical cells derived from a single cell. 
B) a genetically engineered cell. 
C) a taxon composed of species. 
D) a mound of cells on an agar medium. 
A) genetically identical cells derived from a single cell. 
B) a genetically engineered cell. 
C) a taxon composed of species. 
D) a mound of cells on an agar medium.

Question 17

The phylogenetic classification of bacteria is based on

Accepted Answer

A) cell morphology. 
B) Gram reaction. 
C) rRNA sequences. 
D) habitat. 
E) diseases. 
A) cell morphology. 
B) Gram reaction. 
C) rRNA sequences. 
D) habitat. 
E) diseases.

Question 18

In a direct ELISA test,the method is determining if ________ is/are present in the patient's sample by attempting to bind a labeled antibody to it.

Accepted Answer

A) antibodies against a pathogen found in a patient's blood 
B) an antigen from a particular pathogen 
C) a bacteriophage that can infect a particular bacterial strain 
D) a known sequence of DNA from a pathogen 
A) antibodies against a pathogen found in a patient's blood 
B) an antigen from a particular pathogen 
C) a bacteriophage that can infect a particular bacterial strain 
D) a known sequence of DNA from a pathogen

Question 19

Which of the following statements about the members of the Kingdom Animalia is FALSE?

Accepted Answer

A) They are multicellular. 
B) They are composed of eukaryotic cells. 
C) They undergo photosynthesis. 
D) They ingest nutrients through a mouth. 
E) They are heterotrophs. 
A) They are multicellular. 
B) They are composed of eukaryotic cells. 
C) They undergo photosynthesis. 
D) They ingest nutrients through a mouth. 
E) They are heterotrophs.

Question 20

In the scientific name Enterobacter aerogenes,Enterobacter is the

Accepted Answer

A) specific epithet. 
B) genus. 
C) family. 
D) order. 
E) kingdom. 
A) specific epithet. 
B) genus. 
C) family. 
D) order. 
E) kingdom.

Exam 10: Classification of Microorganisms

Which one of the following characteristics most reasonably indicates that two microorganisms are closely related?

Serological testing is used for screening bacterial isolates for similarities.

Which of the following statements about members of the Kingdom Plantae is FALSE?

Once a culture is purified,the next logical step in the process of identifying bacteria is biochemical testing.

Serological testing is based on the fact that

Which of the following criteria is most useful in determining whether two organisms are related?

A bacterial species differs from a species of eukaryotic organisms in that a bacterial species

Table 10.1 1. 9+2 flagella 2. Nucleus 3. Plasma membrane 4. Peptidoglycan 5. Mitochondrion 6. Fimbriae -In Table 10.1,which feature(s)is (are)found only in prokaryotes?

________ are a diverse group of eukaryotic organisms that are similar in rRNA sequences,but quite different from each other in motility types and ecology.They have been used previously as a "catch-all" for organisms that couldn't be easily classified into other groups.

Western blotting is an immunological test used to identify the antibodies in the serum of an individual suspected of having Lyme disease.

For a serological bacterial identification test to be performed,you must have ________ in your possession.

The arrangement of organisms into taxa

Flow cytometry,where a cell is passed through a light source such as a laser beam,can directly indicate all EXCEPT which one of the following about a cell?

A genus can best be defined as

Which of the following best defines a strain in microbiological terms?

A clone is

The phylogenetic classification of bacteria is based on

In a direct ELISA test,the method is determining if ________ is/are present in the patient's sample by attempting to bind a labeled antibody to it.

Which of the following statements about the members of the Kingdom Animalia is FALSE?

In the scientific name Enterobacter aerogenes,Enterobacter is the

The Microbial World and You

Chemical Principles

Observing Microorganisms Through a Microscope

Functional Anatomy of Prokaryotic and Eukaryotic

Microbial Metabolism

Microbial Growth

The Control of Microbial Growth

Microbial Genetics

Biotechnology and Dna Technology

The Prokaryotes: Domains Bacteria and Archaea

The Eukaryotes: Fungi, algae, protozoa, and Helminths

Viruses,viroids,and Prions

Principles of Disease and Epidemiology

Microbial Mechanisms of Pathogenicity

Innate Immunity: Nonspecific Defenses of the Host

Adaptive Immunity: Specific Defenses of the Host

Practical Applications of Immunology

Disorders Associated With the Immune System

Antimicrobial Drugs

Microbial Diseases of the Skin and Eyes

Microbial Diseases of the Nervous System

Microbial Diseases of the Cardiovascular and Lymphatic Systems

Microbial Diseases of the Respiratory System

Microbial Diseases of the Digestive System

Microbial Diseases of the Urinary and Reproductive Systems

Environmental Microbiology

Applied and Industrial Microbiology

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