Question 1

Bacteria and Archaea are similar in which of the following?

Accepted Answer

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

Question 2

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

Accepted Answer

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

Question 3

Fossil evidence indicates that prokaryotic cells first existed on the Earth

Accepted Answer

A)  350 years ago. 
B)  3.5 billion years ago. 
C)  3.5 × 1012 years ago. 
D)  35000 years ago. 
E)  3500 years ago. 
A)  350 years ago. 
B)  3.5 billion years ago. 
C)  3.5 × 1012 years ago. 
D)  35000 years ago. 
E)  3500 years ago.

Question 4

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

Accepted Answer

A) True 
 B)False

Question 5

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

Accepted Answer

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

Question 6

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

Accepted Answer

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

Question 7

As molecular techniques improve, scientists are finding it necessary to reclassify some genera.

Accepted Answer

A) True 
 B)False

Question 8

The cell membranes of all three domains are composed of straight carbon chains attached to glycerol by ester linkage.

Accepted Answer

A) True 
 B)False

Question 9

Into which group would you place a photosynthetic organism that lacks a nucleus and has a thin peptidoglycan wall surrounded by an outer membrane?

Accepted Answer

A)  Fungi 
B)  Animalia 
C)  Proteobacteria (gram-negative bacteria) 
D)  Firmicutes (gram-positive bacteria) 
E)  Plantae 
A)  Fungi 
B)  Animalia 
C)  Proteobacteria (gram-negative bacteria) 
D)  Firmicutes (gram-positive bacteria) 
E)  Plantae

Question 10

Which of the following is NOT based on nucleic-acid hybridization?

Accepted Answer

A)  Southern blotting 
B)  FISH 
C)  Western blotting 
D)  DNA chip 
E)  PCR 
A)  Southern blotting 
B)  FISH 
C)  Western blotting 
D)  DNA chip 
E)  PCR

Question 11

Figure 10.3 This figure shows the results of a gel electrophoresis separation of restriction fragments of the DNA of different organisms.
  In Figure 10.3, which two are most closely related?

Accepted Answer

A)  2 and 5 
B)  4 and 5 
C)  2 and 4 
D)  1 and 3 
E)  3 and 5 
A)  2 and 5 
B)  4 and 5 
C)  2 and 4 
D)  1 and 3 
E)  3 and 5

Question 12

At this point in time, scientists believe the vast majority of the domain Bacteria have been discovered.

Accepted Answer

A) True 
 B)False

Question 13

Protists are a diverse group of organisms that are similar in

Accepted Answer

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

Question 14

Figure 10.1
  
-In Figure 10.1, the closest ancestor for both species ʺa.ʺ and species ʺb.ʺ would be which of the following?

Accepted Answer

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

Question 15

A genus can best be defined as

Accepted Answer

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

Exam 10: Classification of Microorganisms

Bacteria and Archaea are similar in which of the following?

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?

Fossil evidence indicates that prokaryotic cells first existed on the Earth

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

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

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

As molecular techniques improve, scientists are finding it necessary to reclassify some genera.

The cell membranes of all three domains are composed of straight carbon chains attached to glycerol by ester linkage.

Into which group would you place a photosynthetic organism that lacks a nucleus and has a thin peptidoglycan wall surrounded by an outer membrane?

Which of the following is NOT based on nucleic-acid hybridization?

Figure 10.3 This figure shows the results of a gel electrophoresis separation of restriction fragments of the DNA of different organisms. In Figure 10.3, which two are most closely related?

At this point in time, scientists believe the vast majority of the domain Bacteria have been discovered.

Protists are a diverse group of organisms that are similar in

Figure 10.1 -In Figure 10.1, the closest ancestor for both species ʺa.ʺ and species ʺb.ʺ would be which of the following?

A genus can best be defined as

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 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

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 Disease of the Urinary and Reproductive Systems

Environmental Microbiology

Applied and Industrial Microbiology

Innate Immunity: Nonspecific Defenses of the Host

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