After replication at the site of entry, some viruses remain localized, while others disseminate. Which of the following does not determine the outcome? Group of answer choices Presence of a lipid membrane on the virion Whether the virus can cross the basement membrane Directional release of virus from polarized cells Establishment of viremia Transport of virions in immune cells

After replication at the site of entry, some viruses remain localized, while others disseminate. Which of the following does not determine the outcome? Group of answer choices Presence of a lipid membrane on the virion Whether the virus can cross the basement membrane Directional release of virus from polarized cells Establishment of viremia Transport of virions in immune cells

Concepts of Biology

1st Edition

ISBN:9781938168116

Author:Samantha Fowler, Rebecca Roush, James Wise

Publisher:Samantha Fowler, Rebecca Roush, James Wise

Chapter17: The Immune System And Disease

Section: Chapter Questions

Problem 2ACQ: Figure 17.6 Influenza virus is packaged in a viral envelope, which fuses with the plasma membrane....

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All virus particles, in their infectious form, contain which of the following components? Choose all that apply. Group of answer choices Ribosomes Mitochondria Nuclei Cell membranes Nucleic acids encoding genes Protein capsids
The cell is the basic unit of all living things, and viruses which are generally not considered living but have the ability to infect cells. Describe how the structure of a virus compares to the structure of a cell. You should explain (not list) at least two similarities and two differences between features of cells and viruses including a brief explanation of the function of those structures. Explain why viruses need cells.
each virus bind to a specific cell surface receptor for attachment, so prevention of viral attachment how would you create a drug which will prevent viral attachment.
A virus that typically forms an envelope is now being prevented from budding out of the host cell. Would this virus still be considered infectious? Why or why not? Please explain in detail.
The viral genome needs to get to the nucleus for the virus that replicates in the nucleus. In other words, the viral nucleocapsid has to overcome two barriers (i.e., plasma membrane and nuclear membrane). Compare and contrast the mechanisms by which the viruses penetrate the two membranes.
Which statement is true of viral replication? A) virus attaches to a specific receptor site on the host-cell membrane. B) Once inside the cell, the viral capsid is degraded, and the viral nucleic acid is released. C) Virus uses the host cell’s machinery to replicate and new virus particles are released. D) All of the above
A virus would NEVER contain ______________ Select one: a. DNA b. RNA c. Reverse Transcriptase d. Ribosomes
Which of the following is an example of virus-encoded molecules modifying signal transduction pathways to promote replication? Production of a small subgenomic RNA in flavivirus-infected cells Degradation of Xrn1 in poliovirus-infected cells Herpes simplex virus protein that blocks pre-mRNA splicing Poliovirus cleavage of nuclear export proteins
Which of the following is an example of virus-encoded molecules modifying signal transduction pathways to promote replication? Group of answer choices Production of a small subgenomic RNA in flavivirus-infected cells Degradation of Xrn1 in poliovirus-infected cells Herpes simplex virus protein that blocks pre-mRNA splicing Poliovirus cleavage of nuclear export proteins
The type specific antigen (A, B or C) of influenza viruses is found on which viral constituent? A-Nucleocapsid B-Lipid in viral envelope C-Neuraminidase D-Hemagglutinin E-Major structural protein
An illness with an envelope or wrapper around it. In a process known as "sprouting off," the infected cell, or host, produces this membrane. Recently framed virus particles are "encompassed" or encased by an exterior coat formed using a little piece of the phone's plasma film during the maturing system. Endocytosed enveloped viruses exit endosomal compartments during endosome development and fusion with the lysosome for this reason. However, some viruses are able to escape earlier in the process than others.
During infection of a cell by Coronavirus, the N protein is: found on the outer surface of the virus particles synthesized on bound ribosomes on the rough ER synthesized in the cytosol on free ribosomes part of the RNA-dependent RNA polymerase required for binding of the virus particle to cells