What allows the membrane of the HIV and the membrane of the host to fuse? The virus capsid dissolves in the phospholipid bilayer of the host cell membrane The virus contacts proteins on the cell membrane of the host, and then the viral proteins undergo conformational changes The virus docks at a pore, which then pulls the virus into the cell membrane due to molecular attractions

What allows the membrane of the HIV and the membrane of the host to fuse? The virus capsid dissolves in the phospholipid bilayer of the host cell membrane The virus contacts proteins on the cell membrane of the host, and then the viral proteins undergo conformational changes The virus docks at a pore, which then pulls the virus into the cell membrane due to molecular attractions

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....

See similar textbooks

Similar questions

Figure 21.5 Which of the following statements about virus structure is true? All viruses are encased in a viral membrane The capsomere is made up of small protein subunits called capsids. DNA is the genetic material in all viruses. Glycoproteins help the virus attach to the host cell.
Figure 17.5 Which of the following statements about virus structure is true? a. All viruses are encased in a viral membrane. b. The capsomere is made up of small protein subunits called capsids. c. DNA is the genetic material in all viruses. d. Glycoproteins help the virus attach to the host cell.
The genome of a virus consists of (a) DNA (b) RNA (c) prions (d) DNA and RNA (e) DNA or RNA
Which statement is true? a. A virion contains DNA and RNA. b. Viruses are acellular. c. Viruses replicate outside of the cell. d. Most viruses are easily visualized with a light microscope.
The viral ________ plays a role in attaching a virion to the host cell. a. core b. capsid C. envelope d. both b and c
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.
viral genome needs to get to the nucleus for the virus that replicates in the nucleus. the viral nucleocapsid has to pass two barriers (i.e., plasma membrane and nuclear membrane). Compare and contrast the mechanisms by which the viruses penetrate the two membranes.
During viral infection, attachment is usually specific to a particular celltype becausea. the virus is attracted to the appropriate host cells by proteinssecreted into the extracellular fluid.b. the virus recognizes and binds to specific molecules in thecytoplasm of the host cell.c. the virus recognizes and binds to specific molecules on the surfaceof the host cell.d. the host cell produces channel proteins that provide passageways forviruses to enter the cytoplasm.e. the virus releases specific proteins that make holes in the membranelarge enough for the virus to enter.
Adenoviruses that cause colds do not have a lipid envelope. Such naked viruses tend to remain infectious outside the body for longer than enveloped viruses. Naked viruses are also less likely to be destroyed by soap and water. Why are naked viruses hardier than enveloped viruses?
Which receptors of the influenza virus are responsible for binding tothe host cell?a. hemagglutinin b. neuraminidase c. type A d. capsid proteins
Find the wrong information about virus attachment and absorption to host cell. A. The surface capsid proteins of naked viruses bind to a specific cell receptor on host cell. B. For enveloped viruses, the spikes are responsible for binding to a specific cell receptor. C. A cell lacking a receptor for a specific virus is not infected by that virus. D. Animal viruses, such as HIV are highly specific and they can only infect particular cell types. E. All of these are true.
A virus consists of a molecule of________ or_______surrounded by a(n)___________ coat. A virus cannot reproduce unless it enters a(n)_________ cell. A virus that infects bacteria is known as a(n) ________.