Question 1

Which of the following represents a virus family name?

Accepted Answer

A) Herpes simplex virus 
B) Herpesviridae 
C) Picornavirus 
D) Enterovirus 
E) Hepatitis B virus 
A) Herpes simplex virus 
B) Herpesviridae 
C) Picornavirus 
D) Enterovirus 
E) Hepatitis B virus

Question 2

Compare and contrast the steps of viral multiplication cycles in bacteriophages and animal viruses.

Accepted Answer

The steps of viral multiplication cycles

Question 3

The virus-induced, specific damage to the host cell that can be seen in a light microscope is called

Accepted Answer

A) lysogeny. 
B) budding. 
C) plaques. 
D) cytopathic effects. 
E) pocks. 
A) lysogeny. 
B) budding. 
C) plaques. 
D) cytopathic effects. 
E) pocks.

Question 4

Viral spikes are inserted into the host cell membrane before budding or exocytosis occurs.

Accepted Answer

A) True 
 B)False

Question 5

Explain what is meant by host range, what governs host range, and what is meant by tissue tropism.

Accepted Answer

Host range refers to the range of differ

Question 6

All of the following pertain to virus envelopes except they

Accepted Answer

A) are gained as a virus leaves the host cell membrane. 
B) are gained as a virus leaves the nuclear membrane. 
C) contain special virus proteins. 
D) help the virus particle attach to host cells. 
E) are located between the capsid and nucleic acid. 
A) are gained as a virus leaves the host cell membrane. 
B) are gained as a virus leaves the nuclear membrane. 
C) contain special virus proteins. 
D) help the virus particle attach to host cells. 
E) are located between the capsid and nucleic acid.

Question 7

Classification of viruses into families involves determining all the following characteristics except

Accepted Answer

A) type of nucleic acid. 
B) type of capsid. 
C) presence of an envelope. 
D) biochemical reactions. 
E) nucleic acid strand number. 
A) type of nucleic acid. 
B) type of capsid. 
C) presence of an envelope. 
D) biochemical reactions. 
E) nucleic acid strand number.

Question 8

Host cells of viruses include

Accepted Answer

A) human and other animals. 
B) plants and fungi. 
C) bacteria. 
D) protozoa and algae. 
E) All of the choices are correct. 
A) human and other animals. 
B) plants and fungi. 
C) bacteria. 
D) protozoa and algae. 
E) All of the choices are correct.

Question 9

Helical and icosahedral are terms used to describe the shapes of a virus

Accepted Answer

A) spike. 
B) capsomere. 
C) envelope. 
D) capsid. 
E) core. 
A) spike. 
B) capsomere. 
C) envelope. 
D) capsid. 
E) core.

Question 10

Viruses that cause infection resulting in alternating periods of activity with symptoms and inactivity without symptoms are called

Accepted Answer

A) latent 
B) oncogenic. 
C) prions. 
D) viroids. 
E) delta agents. 
A) latent 
B) oncogenic. 
C) prions. 
D) viroids. 
E) delta agents.

Question 11

Which of the following is not associated with every virus?

Accepted Answer

A) envelope 
B) capsomers 
C) capsid 
D) nucleic acid 
E) genome 
A) envelope 
B) capsomers 
C) capsid 
D) nucleic acid 
E) genome

Question 12

The adeno-associated virus (AAV) and the delta agent are prions.

Accepted Answer

A) True 
 B)False

Question 13

Infectious protein particles are called

Accepted Answer

A) viroids. 
B) phages. 
C) prions. 
D) oncogenic viruses. 
E) spikes. 
A) viroids. 
B) phages. 
C) prions. 
D) oncogenic viruses. 
E) spikes.

Question 14

Freshly isolated animal tissue that is placed in a growth medium and allowed to produce a cell monolayer is referred to as a _____ cell culture.

Accepted Answer

The answer of Freshly isolated animal tissue that is placed...

Question 15

How do enveloped animal viruses exit their host?

Accepted Answer

A) Budding or exocytosis 
B) Bursting the host cell 
C) Rupturing the virus 
D) Endocytosis 
E) None of these are correct 
A) Budding or exocytosis 
B) Bursting the host cell 
C) Rupturing the virus 
D) Endocytosis 
E) None of these are correct

Question 16

Clostridium botulinum is made virulent by incorporated prophage genes encoding for the botulinum toxin.What term describes this process?

Accepted Answer

A) Lytic phase 
B) Budding 
C) Adsorption 
D) Lysogenic conversion 
E) Latent phase 
A) Lytic phase 
B) Budding 
C) Adsorption 
D) Lysogenic conversion 
E) Latent phase

Question 17

T-even phages

Accepted Answer

A) include the poxviruses. 
B) infect Escherichia coli cells. 
C) enter host cells by engulfment. 
D) have helical capsids. 
E) All of the choices are correct. 
A) include the poxviruses. 
B) infect Escherichia coli cells. 
C) enter host cells by engulfment. 
D) have helical capsids. 
E) All of the choices are correct.

Question 18

Creutzfeld-Jacob disease is

Accepted Answer

A) caused by a chronic latent virus. 
B) initiated by an oncogenic virus. 
C) caused by a viroid. 
D) a spongiform encephalopathy of humans. 
E) also called "mad cow disease". 
A) caused by a chronic latent virus. 
B) initiated by an oncogenic virus. 
C) caused by a viroid. 
D) a spongiform encephalopathy of humans. 
E) also called "mad cow disease".

Question 19

Viruses that consist of only a nucleocapsid are considered

Accepted Answer

A) simple viruses. 
B) complex viruses. 
C) naked viruses. 
D) viroids. 
E) incomplete viruses. 
A) simple viruses. 
B) complex viruses. 
C) naked viruses. 
D) viroids. 
E) incomplete viruses.

Question 20

Oncogenic viruses include all the following except

Accepted Answer

A) Hepatitis B virus. 
B) Measles virus. 
C) Papillomavirus. 
D) HTLVI and HTLVII viruses. 
E) Epstein-Barr virus. 
A) Hepatitis B virus. 
B) Measles virus. 
C) Papillomavirus. 
D) HTLVI and HTLVII viruses. 
E) Epstein-Barr virus.

Exam 6: An Introduction to Viruses

Which of the following represents a virus family name?

Compare and contrast the steps of viral multiplication cycles in bacteriophages and animal viruses.

The virus-induced, specific damage to the host cell that can be seen in a light microscope is called

Viral spikes are inserted into the host cell membrane before budding or exocytosis occurs.

Explain what is meant by host range, what governs host range, and what is meant by tissue tropism.

All of the following pertain to virus envelopes except they

Classification of viruses into families involves determining all the following characteristics except

Host cells of viruses include

Helical and icosahedral are terms used to describe the shapes of a virus

Viruses that cause infection resulting in alternating periods of activity with symptoms and inactivity without symptoms are called

Which of the following is not associated with every virus?

The adeno-associated virus (AAV) and the delta agent are prions.

Infectious protein particles are called

Freshly isolated animal tissue that is placed in a growth medium and allowed to produce a cell monolayer is referred to as a _____ cell culture.

How do enveloped animal viruses exit their host?

Clostridium botulinum is made virulent by incorporated prophage genes encoding for the botulinum toxin.What term describes this process?

T-even phages

Creutzfeld-Jacob disease is

Viruses that consist of only a nucleocapsid are considered

Oncogenic viruses include all the following except

The Main Themes of Microbiology

The Chemistry of Biology

Tools of the Laboratory: Methods of Studying Microorganisms

A Survey of Prokaryotic Cells and Microorganisms

A Survey of Eukaryotic Cells and Microorganisms

Microbial Nutrition, Ecology, and Growth

An Introduction to Microbial Metabolism: the Chemical Crossroads of Life

An Introduction to Microbial Genetics

Genetic Engineering: a Revolution in Molecular Biology

Physical and Chemical Agents for Microbial Control

Drugs, Microbes, Host-The Elements of Chemotherapy

Microbe-Human Interactions: Infection, Disease, and Epidemiology

An Introduction to Host Defenses and Innate Immunities

Adaptive, Specific Immunity and Immunization

Disorders in Immunity

Procedures for Identifying Pathogens and Diagnosing Infections

The Gram-Positive and Gram-Negative Cocci of Medical Importance

The Gram-Positive Bacilli of Medical Importance

The Gram-Negative Bacilli of Medical Importance

Miscellaneous Bacterial Agents of Disease

The Fungi of Medical Importance

The Parasites of Medical Importance

Introduction to Viruses That Infect Humans: the Dna Viruses

The Rna Viruses That Infect Humans

Environmental Microbiology

Applied and Industrial Microbiology

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