Question 1

In which type of bacteria is the outermost layer of the cell a thick wall of peptidoglycan?

Accepted Answer

A)   Proteobacteria
B)   Cyanobacteria
C)   Gram-positive bacteria
D)   Gram-negative bacteria
E)   ChlamydiasF) B) and D)
G) A) and E)

Question 2

Four of the following are viral diseases.Which one is the exception?

Accepted Answer

A)   Herpes
B)   Measles
C)   Bubonic plague
D)   Hepatitis
E)   Chicken poxF) D) and E)
G) B) and E)

Question 3

Sequencing of the HIV-1 genome revealed that it is most closely related to ____.

Accepted Answer

A)   simian immunodeficiency virus
B)   feline immunodeficiency virus
C)   bovine immunodeficiency virus
D)   hepatitis B
E)   H1N1F) A) and D)
G) B) and C)

Question 4

A(n)__________ is a noncellular infectious particle with a protein coat enclosing DNA or RNA.

Accepted Answer

The answer of A(n)__________ is a noncellular infectious particle with...

Question 5

Four of the following are true of herpes simplex 1.Which one is the exception?

Accepted Answer

A)   It is related to the virus that causes chickenpox.
B)   It has a latent phase in its replication cycle.
C)   It can remain latent in nerve cells for years.
D)   Activation of the latent virus causes cold sores.
E)   Once activated it causes a form of skin cancer.F) A) and D)
G) A) and B)

Question 6

____ is a dangerous bacteria that infects wounds.

Accepted Answer

A)   Thiomargarita namibiensis
B)   Clostridium tetani
C)   Bacillus anthracis
D)   Helicobacter pylori
E)   Thermus aquaticusF) B) and E)
G) A) and C)

Question 7

________________ is one of the earliest antibiotics isolated from a fungus that lives in soil; it acts by inhibiting cell wall synthesis.

Accepted Answer

The answer of ________________ is one of the earliest antibiotics...

Question 8

Which of the following is a characteristic of a bacteriophage?

Accepted Answer

A)   Is a naked virus
B)   Is the most common cause of the common cold
C)   Has a spiked protein coat
D)   Infects animals
E)   Has a lipid envelopeF) B) and E)
G) B) and C)

Question 9

Bacteriorhodopsin is a light-sensitive pigment found in ____ archaeans used to supply energy for ____ production.

Accepted Answer

A)   halophilic; ATP
B)   thermophilic; carbohydrate
C)   methanogenic; methane
D)   halophilic; carbohydrate
E)   thermophilic; ATPF) C) and D)
G) All of the above

Question 10

In which of the following ways are archaea similar to eukaryotic cells?

Accepted Answer

A)   Size
B)   Shape
C)   Presence of histones
D)   DNA polymerases
E)   Presence of operonsF) A) and B)
G) B) and E)

Question 11

What is methanogen?

Accepted Answer

A)   An organism adapted to life in a highly salty environment
B)   An organism that produces a highly salted substance
C)   An organism adapted to life in a methane gas environment
D)   An organism that produces methane gas as a metabolic by-product
E)   An organism that produces methane and carbon dioxide as a metabolic by-productF) C) and E)
G) A) and E)

Question 12

Which organism obtains energy by removing electrons from inorganic molecules?

Accepted Answer

A)   Chemoautotroph
B)   Chemoheterotroph
C)   Photoautotroph
D)   Photoheterotroph
E)   ElectroautotrophF) B) and E)
G) C) and D)

Question 13

Which prokaryote is described accurately?

Accepted Answer

A)   A coccus is corkscrew shaped.
B)   An archaean is arch shaped.
C)   A bacillus is rod shaped.
D)   A spirillum is spherical.
E)   A coccus is flattened.F) All of the above
G) A) and C)

Question 14

AIDS stands for ____.

Accepted Answer

A)   Acquired Immune Deficiency Syndrome
B)   Accelerated Immune Death Syndrome
C)   Accentuated Induced Deficiency Syndrome
D)   Advantageous Immunity Deficiency Syndrome
E)   Acquired Immuno Defense SyndromeF) A) and C)
G) All of the above

Question 15

Which characteristic is LEAST accurate about endospores?

Accepted Answer

A)   They can be destroyed with boiling water.
B)   They are resistant to freezing.
C)   They can withstand irradiation.
D)   They can remain viable for millions of years.
E)   They can withstand drying out.F) A) and D)
G) C) and D)

Question 16

Which prokaryotic nutritional group use organic substances for carbon and photons for energy?

Accepted Answer

A)   Photoautotrophs
B)   Chemoautotrophs
C)   Photoheterotrophs
D)   Chemoheterotrophs
E)   MethanoheterotrophsF) A) and D)
G) B) and C)

Question 17

The methanogenic archaeans are ____.

Accepted Answer

A)   aerobes
B)   facultative anaerobes
C)   strict aerobes
D)   facultative anaerobes..
E)   strict anaerobes.F) A) and D)
G) A) and B)

Question 18

Of all organisms,prokaryotes are the ____.

Accepted Answer

A)   smallest
B)   least abundant
C)   least metabolically diverse
D)   least widespread
E)   most internally complexF) B) and E)
G) B) and C)

Question 19

The three types of horizontal gene flow that occur in bacteria are __________,__________,and __________.

Accepted Answer

conjugation; transduction; transformatio...

Question 20

Mycobacteria secrete a waxy coating that makes this disease difficult to treat using antibiotics:

Accepted Answer

A)   Whooping cough
B)   Cholera
C)   Lyme disease
D)   Impetigo
E)   TuberculosisF) A) and E)
G) C) and E)

Exam 20: Viruses, Bacteria, and Archaea

Which characteristic is LEAST accurate about endospores?

Correct AnswerverifiedShow Answer

In which of the following ways are archaea similar to eukaryotic cells?

Correct AnswerverifiedShow Answer

Bacteriorhodopsin is a light-sensitive pigment found in ____ archaeans used to supply energy for ____ production.

Correct AnswerverifiedShow Answer

________________ is one of the earliest antibiotics isolated from a fungus that lives in soil; it acts by inhibiting cell wall synthesis.

Correct AnswerverifiedShow Answer

A(n)__________ is a noncellular infectious particle with a protein coat enclosing DNA or RNA.

Correct AnswerverifiedShow Answer

What is methanogen?

Correct AnswerverifiedShow Answer

Which prokaryotic nutritional group use organic substances for carbon and photons for energy?

Correct AnswerverifiedShow Answer

Which prokaryote is described accurately?

Correct AnswerverifiedShow Answer

The methanogenic archaeans are ____.

Correct AnswerverifiedShow Answer

Of all organisms,prokaryotes are the ____.

Correct AnswerverifiedShow Answer

Which organism obtains energy by removing electrons from inorganic molecules?

Correct AnswerverifiedShow Answer

AIDS stands for ____.

Correct AnswerverifiedShow Answer

Four of the following are viral diseases.Which one is the exception?

Correct AnswerverifiedShow Answer

Mycobacteria secrete a waxy coating that makes this disease difficult to treat using antibiotics:

Correct AnswerverifiedShow Answer

The three types of horizontal gene flow that occur in bacteria are __________,__________,and __________.

Correct Answerverifiedconjugation; transduction; transformatio...View AnswerShow Answer

Four of the following are true of herpes simplex 1.Which one is the exception?

Correct AnswerverifiedShow Answer

Sequencing of the HIV-1 genome revealed that it is most closely related to ____.

Correct AnswerverifiedShow Answer

In which type of bacteria is the outermost layer of the cell a thick wall of peptidoglycan?

Correct AnswerverifiedShow Answer

Which of the following is a characteristic of a bacteriophage?

Correct AnswerverifiedShow Answer

____ is a dangerous bacteria that infects wounds.

Correct AnswerverifiedShow Answer

Correct Answer
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Bacteriorhodopsin is a light-sensitive pigment found in archaeans used to supply energy for production.

Correct Answer
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The three types of horizontal gene flow that occur in bacteria are ,,and __.

Correct Answer
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conjugation; transduction; transformatio...
View Answer

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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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