Microbiology 020 - General Microbiology » Spring 2022 » Chapter 6 Quiz Viruses
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Question #1
Which of the following is NOT a feature of viruses:
A.
Envelope
B.
Exit through budding or lysis
C.
Protein capsid
D.
Golgi apparatus
E.
Obligate intracellular parasites
F.
Contain either RNA or DNA as their genetic material
Question #2
Which of the following describes the general sequence of events in the replication cycle of an animal virus that enters its host cell with an intact capsid?
A.
Attachment, penetration, biosynthesis, release, uncoating, and assembly
B.
Attachment, uncoating, penetration, biosynthesis, assembly, release
C.
Biosynthesis, attachment, penetration, uncoating, release, assembly
D.
Penetration, attachment, biosynthesis, assembly, and release
E.
Assembly, attachment, penetration, biosynthesis, and release
F.
Attachment, penetration, uncoating, biosynthesis, assembly, and release
Question #3
Which of the following is NOT true during a lytic bacteriophage infection?
A.
After viral replication, the host cell bursts open and releases the new bacteriophages
B.
The virus leaves the cell by budding
C.
None of these choices
D.
The time from attachment to release can range from 20-40 minutes
E.
The bacterial cell's chromosome is destroyed
F.
The viral capsid remains outside of the infected cell
Question #4
Fill in the blank with a single word, number or term. Animal viruses can enter into the host cell through ________ different mechanisms.
A.
3
B.
1
C.
2
Question #5
Fill in the blank with a single word, number or term. Many enveloped viruses enter the host cell through _______ fusion.
A.
nerve
B.
plasma
C.
direct
Question #6
Fill in the blank with a single word, number or term. When the virus capsid enters the cell it must be removed; this process is known as _______ .
A.
biosynthesis
B.
penetration
C.
un coating
Question #7
Fill in the blank with a single word, number or term. There are ______ main mechanisms in which viruses are released from the infected host cell.
A.
2
B.
4
C.
3
Question #8
Fill in the blank with a single word, number or term. Most naked animal viruses exit the cell through ______ , while most enveloped viruses exit gradually through _______ .
A.
lysis, budding
B.
budding, lysis
C.
biosynthesis, penetration
Question #9
Fill in the blanks with a single word, number, or term. The percentage of human cancers believed to be caused by viruses is roughly _____ percent.
A.
10
B.
100
C.
20
Question #10
Fill in the blanks with a single word, number, or term. Many of these viruses contain active genes known as _____ which can cause cancer to develop.
A.
oncogenes
B.
cymogene
C.
hypogene
Question #11
Fill in the blanks with a single word, number, or term. Some of these viruses can also insert their genetic material into the cell's DNA and form a ______ .
A.
provirus
B.
retrovirus
C.
plasma
Question #12
Fill in the blanks with a single word, number, or term. Papillomavirus infection is linked to _____ cancer in women.
A.
colon
B.
cervix
C.
ovarian
Question #13
Fill in the blanks with a single word, number, or term. Hepatitis B virus infection is linked to ______ cancer.
A.
colon
B.
lung
C.
liver
Question #14
Which of the following statements is NOT true for influenza viruses?
A.
Antigenic shift can cause genetic variation in infuenza A viruses
B.
Have an envelope
C.
Contain two surface proteins hemagglutinin and neuraminidase
D.
Contain an RNA genome
E.
Only infect humans
F.
None of these statements are true
Question #15
Fill in the blank with a single word, number, or term. A small circular piece of infectious RNA that is capable of self-replication is a _____ ; these pathogens infect ______ .
A.
viroid,nerve
B.
prion,nerve
C.
viroid, plant
Question #16
Fill in the blank with a single word, number, or term. A _____ is an infectious protein particle that lacks nucleic acid.
A.
prion
B.
plasma
C.
nerve
Question #17
Fill in the blank with a single word, number, or term. Most of these infectious agents cause diseases that affect the _____ system of animals.
A.
digestive
B.
nervous
C.
respiratory
Question #18
Fill in the blank with a single word, number, or term. These transmissible spongiform encephalopathies typically have a mortality rate of ______ percent.
A.
80
B.
90
C.
100
Question #19
Which of the following is a feature of all human herpes viruses?
A.
Contain reverse transcriptase
B.
Establish latent, life-long infections
C.
None of these choices
D.
Naked viruses
E.
Their infections can be cured with antiviral medications
F.
RNA viruses
Question #20
Match the virus to its correct family: Poxviruses
A.
Hepatitis B virus
B.
Chickenpox virus
C.
Smallpox virus
D.
Human papilloma virus
Question #21
Match the virus to its correct family: Herpesvirus
A.
Chickenpox virus
B.
Rabies virus
C.
Pollo virus
D.
Rubella virus
Question #22
Match the virus to its correct family: Papovavirus
A.
Pollo virus
B.
Hepatitis B virus
C.
Human papilloma virus
D.
Human Immunodeficiency virus
Question #23
Match the virus to its correct family: Hepadnavirus
A.
Chickenpox virus
B.
Smallpox virus
C.
Human papilloma virus
D.
Hepatitis B virus
Question #24
Match the virus to its correct family: Picornavirus
A.
Human Immunodeficiency virus
B.
Rubella virus
C.
Pollo virus
D.
Rabies virus
Question #25
Match the virus to its correct family: Rhabdovirus
A.
Human papilloma virus
B.
Rabies virus
C.
Smallpox virus
D.
Chickenpox virus
Question #26
Match the virus to its correct family: Togavirus
A.
Human Immunodeficiency virus
B.
Rubella virus
C.
Hepatitis B virus
D.
Human papilloma virus
Question #27
Match the virus to its correct family: Retrovirus
A.
Hepatitis B virus
B.
Chickenpox virus
C.
Human Immunodeficiency virus
D.
Smallpox virus
Question #28
Most individuals who are infected with Hepatitis B virus have the following clinical manifestation:
A.
Sore throat
B.
None of these choices are correct
C.
Pus-filled lesions
D.
Fulminant hepatitis
E.
Liver cancer
F.
Asymptomatic
Question #29
Patients who are infected with Epstein Barr Virus and mount a vigorous immune response to the virus commonly display the following clinical manifestation:
A.
Oral Hairy Leukoplakia
B.
Cold sores or fever blisters
C.
Nasopharyngeal carcinoma
D.
Burkitt's Lymphoma
E.
Kaposi's sarcoma
F.
Infectious mononucleosis
Question #30
Which of the following statements regarding Human Herpes Virus 8 is true:
A.
Associated with shingles
B.
Is primarily responsible for the immunosuppression of AIDS patients
C.
Associated with Kaposi's sarcoma in HIV+ individuals
D.
Can cause liver failure
E.
All of these statements are correct
F.
There is a vaccine available to prevent infection with this virus
Question #31
Which of the following is NOT considered an early symptom of Ebola virus infection?
A.
Fever
B.
Muscle aches
C.
Loss of appetite
D.
Fatigue
E.
Bleeding from eyes, nose, ears, and other areas
F.
Stomach pain
Question #32
Based on the current mortality rate, approximately what percentage of individuals infected with the novel Coronavirus 2 in the United States will die from their COVID-19 infection?
A.
1.20%
B.
100%
C.
0.01%
D.
20%
E.
1 in 4
F.
None of these choices
Question #33
Based on the outcomes discussed in class, approximately what proportion of individuals infected with the novel Coronavirus 2 in the United States will have a critical case and will require mechanical ventilation (use of a mechanical ventilator or breathing machine) due to their COVID-19 infection?
A.
1 in 5
B.
1 in 1,000
C.
1 in 500
D.
1 in 50
E.
1 in 20
F.
1 in 1'000,000
Question #34
Which of the following is NOT a known risk factor for a severe COVID-19 infection in the US?
A.
Immunocompromised
B.
Diabetes
C.
Asthma
D.
All of these choices are risk factors for severe COVID-19
E.
Heart disease
F.
People of color
Question #35
During a typical flu epidemic in the US, approximately what percentage of the population will be infected?
A.
40-50%
B.
10-20%
C.
1-2%
D.
100%
E.
50-70%
F.
None of these choices
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