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.
Contain either RNA or DNA as their genetic material
B.
Exit through budding or lysis
C.
Envelope
D.
Protein capsid
E.
Golgi apparatus
F.
Obligate intracellular parasites
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.
Biosynthesis, attachment, penetration, uncoating, release, assembly
B.
Attachment, penetration, biosynthesis, release, uncoating, and assembly
C.
Attachment, penetration, uncoating, biosynthesis, assembly, and release
D.
Penetration, attachment, biosynthesis, assembly, and release
E.
Attachment, uncoating, penetration, biosynthesis, assembly, release
F.
Assembly, attachment, penetration, biosynthesis, and release
Question #3
Which of the following is NOT true during a lytic bacteriophage infection?
A.
The time from attachment to release can range from 20-40 minutes
B.
The bacterial cell's chromosome is destroyed
C.
The viral capsid remains outside of the infected cell
D.
The virus leaves the cell by budding
E.
None of these choices
F.
After viral replication, the host cell bursts open and releases the new bacteriophages
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.
1
B.
3
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.
direct
B.
nerve
C.
plasma
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.
3
B.
2
C.
4
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.
biosynthesis, penetration
C.
budding, lysis
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.
20
C.
100
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.
Contain an RNA genome
B.
Only infect humans
C.
Antigenic shift can cause genetic variation in infuenza A viruses
D.
Contain two surface proteins hemagglutinin and neuraminidase
E.
None of these statements are true
F.
Have an envelope
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.
viroid, plant
C.
prion,nerve
Question #16
Fill in the blank with a single word, number, or term. A _____ is an infectious protein particle that lacks nucleic acid.
A.
plasma
B.
prion
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.
nervous
B.
respiratory
C.
digestive
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.
100
C.
90
Question #19
Which of the following is a feature of all human herpes viruses?
A.
None of these choices
B.
Naked viruses
C.
Their infections can be cured with antiviral medications
D.
RNA viruses
E.
Establish latent, life-long infections
F.
Contain reverse transcriptase
Question #20
Match the virus to its correct family: Poxviruses
A.
Chickenpox virus
B.
Human papilloma virus
C.
Smallpox virus
D.
Hepatitis B virus
Question #21
Match the virus to its correct family: Herpesvirus
A.
Rabies virus
B.
Chickenpox virus
C.
Rubella virus
D.
Pollo virus
Question #22
Match the virus to its correct family: Papovavirus
A.
Hepatitis B virus
B.
Pollo virus
C.
Human Immunodeficiency virus
D.
Human papilloma virus
Question #23
Match the virus to its correct family: Hepadnavirus
A.
Chickenpox virus
B.
Human papilloma virus
C.
Hepatitis B virus
D.
Smallpox virus
Question #24
Match the virus to its correct family: Picornavirus
A.
Rabies virus
B.
Pollo virus
C.
Rubella virus
D.
Human Immunodeficiency virus
Question #25
Match the virus to its correct family: Rhabdovirus
A.
Smallpox virus
B.
Rabies virus
C.
Chickenpox virus
D.
Human papilloma virus
Question #26
Match the virus to its correct family: Togavirus
A.
Hepatitis B virus
B.
Rubella virus
C.
Human Immunodeficiency virus
D.
Human papilloma virus
Question #27
Match the virus to its correct family: Retrovirus
A.
Hepatitis B virus
B.
Smallpox virus
C.
Human Immunodeficiency virus
D.
Chickenpox virus
Question #28
Most individuals who are infected with Hepatitis B virus have the following clinical manifestation:
A.
Liver cancer
B.
Pus-filled lesions
C.
Sore throat
D.
Asymptomatic
E.
None of these choices are correct
F.
Fulminant hepatitis
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.
Kaposi's sarcoma
B.
Cold sores or fever blisters
C.
Oral Hairy Leukoplakia
D.
Infectious mononucleosis
E.
Burkitt's Lymphoma
F.
Nasopharyngeal carcinoma
Question #30
Which of the following statements regarding Human Herpes Virus 8 is true:
A.
Associated with shingles
B.
All of these statements are correct
C.
There is a vaccine available to prevent infection with this virus
D.
Associated with Kaposi's sarcoma in HIV+ individuals
E.
Is primarily responsible for the immunosuppression of AIDS patients
F.
Can cause liver failure
Question #31
Which of the following is NOT considered an early symptom of Ebola virus infection?
A.
Bleeding from eyes, nose, ears, and other areas
B.
Muscle aches
C.
Fatigue
D.
Fever
E.
Stomach pain
F.
Loss of appetite
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.
100%
B.
1 in 4
C.
None of these choices
D.
0.01%
E.
20%
F.
1.20%
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 500
B.
1 in 1'000,000
C.
1 in 5
D.
1 in 20
E.
1 in 1,000
F.
1 in 50
Question #34
Which of the following is NOT a known risk factor for a severe COVID-19 infection in the US?
A.
Heart disease
B.
Asthma
C.
Immunocompromised
D.
People of color
E.
All of these choices are risk factors for severe COVID-19
F.
Diabetes
Question #35
During a typical flu epidemic in the US, approximately what percentage of the population will be infected?
A.
10-20%
B.
40-50%
C.
50-70%
D.
None of these choices
E.
1-2%
F.
100%
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