Question 1

Which of the following provides taxonomic information that includes the others?

Accepted Answer

A)  amino acid sequencing 
B)  nucleic acid- base composition 
C)  nucleic acid hybridization 
D)  biochemical tests 
E)  cladogram 
A)  amino acid sequencing 
B)  nucleic acid- base composition 
C)  nucleic acid hybridization 
D)  biochemical tests 
E)  cladogram

Question 2

Serological testing is used for screening bacterial isolates for similarities.

Accepted Answer

A) True 
 B)False

Question 3

Which of the following best defines a strain?

Accepted Answer

A)  a population of cells with similar characteristics 
B)  a group of organisms with a limited geographical distribution 
C)  same as a species 
D)  a pure culture that is not totally identical to other cultures of the same species 
E)  a group of cells derived from a single parent 
A)  a population of cells with similar characteristics 
B)  a group of organisms with a limited geographical distribution 
C)  same as a species 
D)  a pure culture that is not totally identical to other cultures of the same species 
E)  a group of cells derived from a single parent

Question 4

Pure cultures of the same species are not always identical in all ways.

Accepted Answer

A) True 
 B)False

Question 5

Bacteria and Archaea are similar in which of the following?

Accepted Answer

A)  sensitivity to antibiotics 
B)  plasma membrane ester linkage 
C)  considered prokaryotic cells 
D)  peptidoglycan cell walls 
E)  methionine as the start signal for protein synthesis 
A)  sensitivity to antibiotics 
B)  plasma membrane ester linkage 
C)  considered prokaryotic cells 
D)  peptidoglycan cell walls 
E)  methionine as the start signal for protein synthesis

Question 6

Phage typing is based on the fact that

Accepted Answer

A)  bacteria are destroyed by viruses. 
B)  bacterial viruses attack only members of a specific species. 
C)  Staphylococcus causes infections. 
D)  viruses cause disease. 
E)  phages and bacteria are related. 
A)  bacteria are destroyed by viruses. 
B)  bacterial viruses attack only members of a specific species. 
C)  Staphylococcus causes infections. 
D)  viruses cause disease. 
E)  phages and bacteria are related.

Question 7

If two organisms have similar rRNA sequences, you can conclude that they

Accepted Answer

A)  mated with each other. 
B)  will have different G- C ratios. 
C)  will both ferment lactose. 
D)  evolved from a common ancestor. 
E)  live in the same place. 
A)  mated with each other. 
B)  will have different G- C ratios. 
C)  will both ferment lactose. 
D)  evolved from a common ancestor. 
E)  live in the same place.

Question 8

Which of the following statements about archaea is FALSE?

Accepted Answer

A)  They evolved before bacteria. 
B)  They are prokaryotes. 
C)  They lack peptidoglycan in their cell walls. 
D)  Some are thermoacidophiles; others are extreme halophiles. 
E)  Some produce methane from carbon dioxide and hydrogen. 
A)  They evolved before bacteria. 
B)  They are prokaryotes. 
C)  They lack peptidoglycan in their cell walls. 
D)  Some are thermoacidophiles; others are extreme halophiles. 
E)  Some produce methane from carbon dioxide and hydrogen.

Question 9

Serological testing is based on the fact that

Accepted Answer

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

Question 10

Protists are a diverse group of organisms that are similar in

Accepted Answer

A)  rRNA sequences. 
B)  metabolic type. 
C)  ecology. 
D)  motility. 
E)  None of the answers is correct. 
A)  rRNA sequences. 
B)  metabolic type. 
C)  ecology. 
D)  motility. 
E)  None of the answers is correct.

Question 11

Into which group would you place a photosynthetic cell that lacks a nucleus?

Accepted Answer

A)  Bacteria 
B)  Fungi 
C)  Plantae 
D)  Protista 
E)  Animalia 
A)  Bacteria 
B)  Fungi 
C)  Plantae 
D)  Protista 
E)  Animalia

Question 12

Table 10.1 1. $\text {$9 + 2$ flagella}$
2. $\text {Nucleus}$
3.$\text { Plasma membrane}$
4.$\text { Peptidoglycan}$
5.$\text { Mitochondrion}$
6.$\text { Fimbriae}$

-In Table 10.1, which feature(s) is (are) found only in prokaryotes?

Accepted Answer

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

Question 13

Organism A has 70 moles % G+C, and organism B has 40 moles % G+C. Which of the following can be concluded from these data?

Accepted Answer

A)  The organisms make entirely different enzymes. 
B)  The two organisms are unrelated. 
C)  The two organisms are related. 
D)  Their nucleic acids will completely hybridize. 
E)  None of the answers is correct. 
A)  The organisms make entirely different enzymes. 
B)  The two organisms are unrelated. 
C)  The two organisms are related. 
D)  Their nucleic acids will completely hybridize. 
E)  None of the answers is correct.

Question 14

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

Accepted Answer

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

Question 15

Which of the following statements is a reason for NOT classifying viruses in one of three domains rather than in a fourth domain?

Accepted Answer

A)  Viruses are not composed of cells. 
B)  Viruses are obligate parasites. 
C)  Some viruses can incorporate their genome into a host's genome. 
D)  Viruses direct anabolic pathways of host cells. 
E)  All of the answers are correct. 
A)  Viruses are not composed of cells. 
B)  Viruses are obligate parasites. 
C)  Some viruses can incorporate their genome into a host's genome. 
D)  Viruses direct anabolic pathways of host cells. 
E)  All of the answers are correct.

Question 16

Figure 10.4
  
-In the cladogram shown in Figure 10.4, which two organisms are most closely related?

Accepted Answer

A)  Mycobacterium and Lactobacillus 
B)  Streptomyces and Lactobacillus 
C)  Streptomyces and Micrococcus 
D)  Micrococcus and Mycobacterium 
E)  Streptomyces and Mycobacterium 
A)  Mycobacterium and Lactobacillus 
B)  Streptomyces and Lactobacillus 
C)  Streptomyces and Micrococcus 
D)  Micrococcus and Mycobacterium 
E)  Streptomyces and Mycobacterium

Question 17

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

Accepted Answer

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

Question 18

When building a cladogram, the length of the horizontal branch is based on the calculated percent similarity between organisms.

Accepted Answer

A) True 
 B)False

Question 19

A genus can best be defined as

Accepted Answer

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

Question 20

Figure 10.2
A nucleic acid hybridization experiment produced the following results.
  
-In Figure 10.2, which figure shows the most closely related organisms?

Accepted Answer

A)  a 
B)  b 
C)  c 
D)  d 
E)  e 
A)  a 
B)  b 
C)  c 
D)  d 
E)  e

Exam 10: Classification of Microorganisms

Which of the following provides taxonomic information that includes the others?

Serological testing is used for screening bacterial isolates for similarities.

Which of the following best defines a strain?

Pure cultures of the same species are not always identical in all ways.

Bacteria and Archaea are similar in which of the following?

Phage typing is based on the fact that

If two organisms have similar rRNA sequences, you can conclude that they

Which of the following statements about archaea is FALSE?

Serological testing is based on the fact that

Protists are a diverse group of organisms that are similar in

Into which group would you place a photosynthetic cell that lacks a nucleus?

Organism A has 70 moles % G+C, and organism B has 40 moles % G+C. Which of the following can be concluded from these data?

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

Which of the following statements is a reason for NOT classifying viruses in one of three domains rather than in a fourth domain?

Figure 10.4 -In the cladogram shown in Figure 10.4, which two organisms are most closely related?

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

When building a cladogram, the length of the horizontal branch is based on the calculated percent similarity between organisms.

A genus can best be defined as

Figure 10.2 A nucleic acid hybridization experiment produced the following results. -In Figure 10.2, which figure shows the most closely related organisms?

The Microbial World and You

Chemical Principles

Observing Microorganisms Through a Microscope

Functional Anatomy of Prokaryotic and Eukaryotic Cells

Microbial Metabolism

Microbial Growth

The Control of Microbial Growth

Microbial Genetics

Biotechnology and Recombinant Dna

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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