Podcast
Questions and Answers
What is the role of the viral envelope?
What is the role of the viral envelope?
- To facilitate penetration of the host cell membrane (correct)
- To form the capsid and package the viral genome
- To contain the virus's genetic material
- To encode all the information necessary to produce new progeny virions
Which proteins are involved in the initial contact with receptors on host cells?
Which proteins are involved in the initial contact with receptors on host cells?
- Matrix proteins
- Structural proteins
- Non-structural proteins
- Viral envelope proteins (correct)
What is the function of matrix proteins in enveloped viruses?
What is the function of matrix proteins in enveloped viruses?
- To serve as a bridge between the nucleocapsid and the inside of the viral membrane or envelope (correct)
- To facilitate replication
- To form the capsid
- To package the viral genome
Which type of viruses have a defined external capsid and are referred to as naked capsid viruses?
Which type of viruses have a defined external capsid and are referred to as naked capsid viruses?
What is the main role of non-structural proteins in viruses?
What is the main role of non-structural proteins in viruses?
In which part of the viral life cycle do structural proteins play a key role?
In which part of the viral life cycle do structural proteins play a key role?
Which type of symmetry do most viruses have in their capsid structure?
Which type of symmetry do most viruses have in their capsid structure?
What is the role of spikes in enveloped viruses?
What is the role of spikes in enveloped viruses?
What is the role of T-cell activation in the viral life cycle?
What is the role of T-cell activation in the viral life cycle?
Which of the following is a component of a typical virus?
Which of the following is a component of a typical virus?
What is the function of viral receptors and VAP found on a virus?
What is the function of viral receptors and VAP found on a virus?
What is the classification of the Ebola virus in terms of its genetic material?
What is the classification of the Ebola virus in terms of its genetic material?
Which of the following is a type of viral symmetry?
Which of the following is a type of viral symmetry?
What technique is commonly used to identify viruses in the lab?
What technique is commonly used to identify viruses in the lab?
What does serology refer to in the context of virology?
What does serology refer to in the context of virology?
Which cellular process plays a role in phagocytosis of the human immune system during the viral life cycle?
Which cellular process plays a role in phagocytosis of the human immune system during the viral life cycle?
Which protein on the surface of herpes simplex virus (HSV) mediates the initial attachment of virus particles to heparan sulfate moieties on host cell-surface proteoglycans?
Which protein on the surface of herpes simplex virus (HSV) mediates the initial attachment of virus particles to heparan sulfate moieties on host cell-surface proteoglycans?
Which receptor does gD bind to trigger membrane fusion for herpes simplex virus (HSV) entry?
Which receptor does gD bind to trigger membrane fusion for herpes simplex virus (HSV) entry?
Which of the following is the receptor for parvovirus B19 entry into erythroid precursor cells?
Which of the following is the receptor for parvovirus B19 entry into erythroid precursor cells?
Which cell type expresses high levels of P antigen receptor but lacks α5β1 integrin coreceptor, thus allowing parvovirus B19 binding but not viral entry?
Which cell type expresses high levels of P antigen receptor but lacks α5β1 integrin coreceptor, thus allowing parvovirus B19 binding but not viral entry?
Which type of viruses enter cells by direct fusion mechanism, where the viral envelope fuses with the plasma membrane of the host cells?
Which type of viruses enter cells by direct fusion mechanism, where the viral envelope fuses with the plasma membrane of the host cells?
Which viral protein is involved in the entry of influenza virus by binding to sialic acid receptors on respiratory epithelial cells?
Which viral protein is involved in the entry of influenza virus by binding to sialic acid receptors on respiratory epithelial cells?
Which protein mediates the attachment and entry of rabies virus into neurons and muscle cells?
Which protein mediates the attachment and entry of rabies virus into neurons and muscle cells?
Which type of cell does rhinovirus specifically target for entry?
Which type of cell does rhinovirus specifically target for entry?
What is the first line of defense against viral infections?
What is the first line of defense against viral infections?
What type of cells destroy virus-infected cells?
What type of cells destroy virus-infected cells?
What is the first specific immune response after viral infection?
What is the first specific immune response after viral infection?
What is the method used to quantitate viruses by counting plaque-forming units?
What is the method used to quantitate viruses by counting plaque-forming units?
Which laboratory technique involves the use of cell culture to grow viruses in-vitro?
Which laboratory technique involves the use of cell culture to grow viruses in-vitro?
What is the target molecule for the polymerase chain reaction (PCR)?
What is the target molecule for the polymerase chain reaction (PCR)?
What is the primary culture referred to in the growth of human viruses?
What is the primary culture referred to in the growth of human viruses?
Which type of viruses are all DNA viruses, except Parvoviridae?
Which type of viruses are all DNA viruses, except Parvoviridae?
What is the main feature of negative sense viruses?
What is the main feature of negative sense viruses?
In viral pathogenesis, what aspect involves the complex interactions between viruses and hosts?
In viral pathogenesis, what aspect involves the complex interactions between viruses and hosts?
What is the main feature of innate defenses against damaging organisms and toxins?
What is the main feature of innate defenses against damaging organisms and toxins?
Which factor plays an important role in determining the outcome of viral infection?
Which factor plays an important role in determining the outcome of viral infection?
What is the capability of viruses to infect a discrete population of cells within an organ called?
What is the capability of viruses to infect a discrete population of cells within an organ called?
What does viral virulence refer to?
What does viral virulence refer to?
Which type of host defense includes interferons, natural killer cells, and fever?
Which type of host defense includes interferons, natural killer cells, and fever?
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