EBK MICROBIOLOGY:W/DISEASES BY BODY...-
5th Edition
ISBN: 9780134608242
Author: BAUMAN
Publisher: PEARSON
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Chapter 13, Problem 12CT
Summary Introduction
To answer:
Absence of viral envelope and its effect on the virulence of the virus.
Introduction:
The viruses are obligate organisms that show signs of life only inside a host. Outside the host, they either die or do not show any sign of life. They invade the host cell to carry out their function like replication. A particular virus infects a particular host cell. The invaded host cell acts as machinery for the viruses. Depending upon the state of the virus, they can carry out either lytic cycle or lysogenic cycle.
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In electron micrographs of HSV infection, it can be seen that the intact virus initially reacts
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The viral envelope is not required for infectivity, since the envelope does not enter the
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The viral envelope mediates entry into the cell, the capsid mediates entry into the
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into the host cell like the genome of a phage.
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Which of the following statements is TRUE concerning viral envelopes?
Only viruses with envelopes have their contents enclosed by a layer containing lipids
Only viruses without envelopes interact with receptor proteins on the surface of the host cell.
Only viruses without envelopes can release their genetic material into the cytoplasm of the host.
Only viruses with envelopes package their genetic material by engulfing it.
Rhinovirus, the most common cause of colds, do not have a lipid envelope. Compared to enveloped viruses these and other nonenveloped viruses tend to remain infectious outside the body longer, are more likely to be spread by contact with surfaces, and are likely to be rendered harmless by exposure to hand sanitizer or hand washing. Explain how the lack of an envelope could contribute to these characteristics.
Chapter 13 Solutions
EBK MICROBIOLOGY:W/DISEASES BY BODY...-
Ch. 13 - Why are naked icosahedral viruses able to...Ch. 13 - What characteristics of the genomes of...Ch. 13 - Prob. 3TMWCh. 13 - Prob. 1EDCSCh. 13 - Prob. 4TMWCh. 13 - Prob. 5TMWCh. 13 - Prob. 6TMWCh. 13 - Prob. 7TMWCh. 13 - Prob. 1CCSCh. 13 - Prob. 1MC
Ch. 13 - Prob. 2MCCh. 13 - Prob. 3MCCh. 13 - Prob. 4MCCh. 13 - Prob. 5MCCh. 13 - Prob. 6MCCh. 13 - Prob. 7MCCh. 13 - Prob. 8MCCh. 13 - Prob. 9MCCh. 13 - Prob. 10MCCh. 13 - Prob. 1MCh. 13 - Prob. 1VICh. 13 - Prob. 2VICh. 13 - Prob. 1SACh. 13 - Prob. 2SACh. 13 - Prob. 3SACh. 13 - Prob. 4SACh. 13 - Prob. 5SACh. 13 - What is the difference between a virion and a...Ch. 13 - How is a provirus like a prophage? How is it...Ch. 13 - Prob. 8SACh. 13 - Prob. 9SACh. 13 - Prob. 10SACh. 13 - Prob. 1CTCh. 13 - Prob. 2CTCh. 13 - Prob. 3CTCh. 13 - Prob. 4CTCh. 13 - Prob. 5CTCh. 13 - Prob. 6CTCh. 13 - Prob. 7CTCh. 13 - Why has it been difficult to develop a complete...Ch. 13 - Prob. 9CTCh. 13 - What differences would you expect in the...Ch. 13 - Prob. 11CTCh. 13 - Prob. 12CTCh. 13 - Prob. 13CTCh. 13 - Using the following terms, fill in the following...
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- Imagine that a drug was discovered that is able to bind to and cut off the 5' cap of the coronavirus RNA genome once it enters the host cytoplasm. Based on this description, which of the following steps of the infection cycle would this drug directly inhibit? a) Entry b) Synthesis c) Attachment d) Release e) Assemblyarrow_forwardWhich of the following is a possible result of viral infection in eukaryotic host cells? O 1) Syncytialization of host cells. O 2) Inclusion bodies within the cytoplasm. O 3) oncogenesis. O 4) Host cell death 5) All of the abovearrow_forwardWhich is the usual order of a viral replication cycle when it is making new virions? O Host recognition > replication > entry > uncoating > release O Uncoating > host recognition > replication > entry > release O Prophase > metaphase > anaphase > telophase > cytokinesis Host recognition > entry > uncoating > replication > release MacBook Air DII DD F11 888 F8 F9 F7 F6 F5 F3 F4 & %24 % 7 8 LOarrow_forward
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