The Virus Life Cycle Quiz

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Which step in the virus life cycle involves the fusion of viral and cellular membranes?

Attachment

Synthesis

Release

Uncoating (correct)

What happens to the negative sense RNA genome after it is released into the cell cytoplasm?

It is transcribed into mRNAs (correct)

It is replicated into a positive sense viral complementary RNA

It is translated into viral gene transcripts

It is encapsidated with the M protein

Which viral protein is responsible for interacting with the encapsidated genomes during assembly?

RNA dependent RNA polymerase

Host cell machinery

Glycoproteins

M protein (correct)

Which family does the Measles Virus (MeV) belong to?

Paramyxoviridae Signup and view all the answers

What is the function of the viral glycoproteins during the virus life cycle?

Release Signup and view all the answers

Which step in the virus life cycle involves the production of a positive sense viral complementary RNA (vcRNA +ve)?

Genome replication Signup and view all the answers

What is the role of the host cell machinery during the virus life cycle?

Synthesis Signup and view all the answers

Which step in the virus life cycle involves the attachment of a virion to a host cell surface receptor?

Attachment Signup and view all the answers

What is the function of the RNA dependent RNA polymerase in a -ssRNA virus?

Genome replication Signup and view all the answers

What is the first step in the virus life cycle?

Attachment Signup and view all the answers

Which route of transmission involves the movement of a virus through the respiratory system?

Respiratory route Signup and view all the answers

Which type of transmission occurs when a virus is passed from a mother to her child during pregnancy or childbirth?

Vertical transmission Signup and view all the answers

Which term describes a virus's ability to infect a specific type of cell but not another?

Cellular tropism Signup and view all the answers

Which term describes a virus's ability to infect a specific tissue or organ?

Tissue tropism Signup and view all the answers

Which term describes a virus's ability to infect one host species but not another?

Host tropism Signup and view all the answers

Which site is considered a secondary site for viral entry and propagation within the body systems?

Skin Signup and view all the answers

Which step in the cycle of infection involves the replication of the virus at the primary site?

Entry Signup and view all the answers

Which step in the cycle of infection involves the release of viral particles from the host to infect others?

Shedding Signup and view all the answers

Which route of transmission involves the spread of microbes from the human or animal stool to your mouth?

Fecal-oral route Signup and view all the answers

Which route of transmission is the most effective in spreading pathogens over long distances?

Respiratory route Signup and view all the answers

Which route of transmission involves the spread of pathogenic agents from animal-to-animal through coitus?

Venereal route Signup and view all the answers

Which route of transmission involves the direct application of a drug to the skin?

Cutaneous route Signup and view all the answers

Which route of transmission is associated with the spread of viruses like SARS and Ebola over short distances?

Respiratory route Signup and view all the answers

Which type of transmission is linked to premature births and miscarriages when it comes to HPV?

Vertical transmission Signup and view all the answers

Which type of transmission involves the spread of infectious diseases from animals to humans through ticks, mosquitoes, and fleas?

Zoonotic transmission Signup and view all the answers

Which route of transmission is commonly associated with tropical arthropods like arboviruses?

Mechanical route Signup and view all the answers

Which route of transmission is commonly associated with viruses like HIV-1, HBV, and papillomavirus?

Sexual route Signup and view all the answers

Which route of transmission is commonly associated with viruses like Lassa fever virus and cytomegalovirus?

Via urine Signup and view all the answers

Which type of epidemic does not necessarily have to involve contagious diseases?

Epidemic Signup and view all the answers

Which term describes a disease that is consistently present but limited to particular regions?

Endemic Signup and view all the answers

Which term describes a disease that covers a wide area, affecting several countries and populations?

Pandemic Signup and view all the answers

Which type of transmission is commonly associated with ticks, mosquitoes, and fleas spreading infectious diseases from animals to humans?

Vector-borne transmission Signup and view all the answers

Which term describes the severity of disease caused by different strains of the same virus?

Virulence Signup and view all the answers

What are virulence factors?

Characteristics that allow viruses to be pathogenic Signup and view all the answers

Which type of infection causes viruses to only replicate at the primary site?

Localised infection Signup and view all the answers

Which type of infection causes viruses to replicate at more distant tissues?

Generalised infection Signup and view all the answers

What determines the disease outcome of viral infection?

Viral replication in the host cells Signup and view all the answers

What does understanding the mechanisms involved during viral infection contribute to?

All of the above Signup and view all the answers

What is the term for a virus's ability to infect a specific tissue or organ?

Viral tropism Signup and view all the answers

What is the role of the host cell machinery during the virus life cycle?

To support viral replication Signup and view all the answers

Which route of transmission is commonly associated with the spread of rhinovirus and influenza virus?

Respiratory route Signup and view all the answers

Which route of transmission is commonly associated with the spread of poliovirus?

Faecal-oral route Signup and view all the answers

Which route of transmission is commonly associated with the spread of Lassa fever virus and cytomegalovirus?

Via urine Signup and view all the answers

Which route of transmission is common with tropical arthropods and is associated with arboviruses?

Mechanical route Signup and view all the answers

Which type of epidemic is characterized by an unexpected increase in the number of disease cases in a specific geographical area, even if the disease is not necessarily contagious?

Epidemic Signup and view all the answers

Which term describes the characteristics that allow a virus to be pathogenic?

Pathogenicity Signup and view all the answers

What is the difference between pathogenicity and virulence?

Pathogenicity refers to the virus' effect on the host, while virulence refers to the severity of disease caused by different strains of the same virus Signup and view all the answers

What are virulence factors?

Characteristics that allow viruses to be pathogenic Signup and view all the answers

Which term describes a virus's ability to infect one host species but not another?

Specificity Signup and view all the answers

What is the role of the host cell machinery during the virus life cycle?

To produce viral proteins Signup and view all the answers

What are virulence factors?

Factors that allow a virus to be pathogenic Signup and view all the answers

Which type of transmission is linked to premature births and miscarriages when it comes to HPV?

Vertical transmission Signup and view all the answers

Which term describes a virus's ability to infect a specific type of cell but not another?

Tropism Signup and view all the answers

What does understanding the mechanisms involved during viral infection contribute to?

All of the above Signup and view all the answers

Which route of transmission is commonly associated with viruses like HIV-1, HBV, and papillomavirus?

Sexual transmission Signup and view all the answers

Which route of transmission involves the movement of a virus through the respiratory system?

Airborne transmission Signup and view all the answers

The Virus Life Cycle Quiz

Podcast Beta

Questions and Answers

Which step in the virus life cycle involves the fusion of viral and cellular membranes?

What happens to the negative sense RNA genome after it is released into the cell cytoplasm?

Which viral protein is responsible for interacting with the encapsidated genomes during assembly?

Which family does the Measles Virus (MeV) belong to?

What is the function of the viral glycoproteins during the virus life cycle?

Which step in the virus life cycle involves the production of a positive sense viral complementary RNA (vcRNA +ve)?

What is the role of the host cell machinery during the virus life cycle?

Which step in the virus life cycle involves the attachment of a virion to a host cell surface receptor?

What is the function of the RNA dependent RNA polymerase in a -ssRNA virus?

What is the first step in the virus life cycle?

Which route of transmission involves the movement of a virus through the respiratory system?

Which type of transmission occurs when a virus is passed from a mother to her child during pregnancy or childbirth?

Which term describes a virus's ability to infect a specific type of cell but not another?

Which term describes a virus's ability to infect a specific tissue or organ?

Which term describes a virus's ability to infect one host species but not another?

Which site is considered a secondary site for viral entry and propagation within the body systems?

Which step in the cycle of infection involves the replication of the virus at the primary site?

Which step in the cycle of infection involves the release of viral particles from the host to infect others?

Which route of transmission involves the spread of microbes from the human or animal stool to your mouth?

Which route of transmission is the most effective in spreading pathogens over long distances?

Which route of transmission involves the spread of pathogenic agents from animal-to-animal through coitus?

Which route of transmission involves the direct application of a drug to the skin?

Which route of transmission is associated with the spread of viruses like SARS and Ebola over short distances?

Which type of transmission is linked to premature births and miscarriages when it comes to HPV?

Which type of transmission involves the spread of infectious diseases from animals to humans through ticks, mosquitoes, and fleas?

Which route of transmission is commonly associated with tropical arthropods like arboviruses?

Which route of transmission is commonly associated with viruses like HIV-1, HBV, and papillomavirus?

Which route of transmission is commonly associated with viruses like Lassa fever virus and cytomegalovirus?

Which type of epidemic does not necessarily have to involve contagious diseases?

Which term describes a disease that is consistently present but limited to particular regions?

Which term describes a disease that covers a wide area, affecting several countries and populations?

Which type of transmission is commonly associated with ticks, mosquitoes, and fleas spreading infectious diseases from animals to humans?

Which term describes the severity of disease caused by different strains of the same virus?

What are virulence factors?

Which type of infection causes viruses to only replicate at the primary site?

Which type of infection causes viruses to replicate at more distant tissues?

What determines the disease outcome of viral infection?

What does understanding the mechanisms involved during viral infection contribute to?

What is the term for a virus's ability to infect a specific tissue or organ?

What is the role of the host cell machinery during the virus life cycle?

Which route of transmission is commonly associated with the spread of rhinovirus and influenza virus?

Which route of transmission is commonly associated with the spread of poliovirus?

Which route of transmission is commonly associated with the spread of Lassa fever virus and cytomegalovirus?

Which route of transmission is common with tropical arthropods and is associated with arboviruses?

Which type of epidemic is characterized by an unexpected increase in the number of disease cases in a specific geographical area, even if the disease is not necessarily contagious?

Which term describes the characteristics that allow a virus to be pathogenic?

What is the difference between pathogenicity and virulence?

What are virulence factors?

Which term describes a virus's ability to infect one host species but not another?

What is the role of the host cell machinery during the virus life cycle?

What are virulence factors?

Which type of transmission is linked to premature births and miscarriages when it comes to HPV?

Which term describes a virus's ability to infect a specific type of cell but not another?

What does understanding the mechanisms involved during viral infection contribute to?

Which route of transmission is commonly associated with viruses like HIV-1, HBV, and papillomavirus?

Which route of transmission involves the movement of a virus through the respiratory system?

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