Microbiology with Diseases by Body System, Books a la Carte Edition & Modified Mastering Microbiology with Pearson eText -- ValuePack Access Card
1st Edition
ISBN: 9780133962482
Author: Robert W. Bauman Ph.D.
Publisher: PEARSON
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Chapter 13, Problem 6MC
Summary Introduction
Introduction:
The viruses are obligate parasitic 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. Depending upon the state of the virus, they can carry out lytic cycle or lysogenic cycle.
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Students have asked these similar questions
An experimental drug therapy to treat patients with antibiotic-resistant bacteria involves introduction of a highly specific bacteriophage to the infected patient's bloodstream. Which of the following bacteriophage types would be the LEAST useful for this therapy?
a. a lytic bacteriophage
b. An enveloped virus
c. An RNA virus
d. a lysogenic bacteriophage
Viruses are acellular because
a. they are biological entities that do not have a cellular structure.
b. they are known as virions that obtain their genetic materials from their host
c. they are only fragments of non living material.
d. None from choices a-c
a. Since viruses lack metabolic enzymes, how can they synthesize necessary components? b. Name some enzymes that viruses may have for invading and completing their cycles.
Chapter 13 Solutions
Microbiology with Diseases by Body System, Books a la Carte Edition & Modified Mastering Microbiology with Pearson eText -- ValuePack Access Card
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 - Prob. 1CM
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- A virus with an envelope is most likely A. an animal virus B. better able to hide from the hosts immune system due to the envelope C. found only in plants D. A and Barrow_forwardThere have been recent outbreaks of dog flu in the US. Why doesn't this virus infect humans? A) The virus can replicate in cells of all species but can only egress from dog cells. B) The genetic code of the virus is the same as that in dog cells but is different from other organisms. C) The virus can only attach to dog cells. D) The virus can enter cells of all species but can only replicate in dog cells.arrow_forwardWhich of the following is a reason that scientists do not classify viruses as living things? A. They must infect a host because they cannot reproduce on their own. B. They contain DNA, like all living organisms. C. The experience evolution through natural selection. D. They replicate themselves and reproducearrow_forward
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- Why must a new flu vaccine be manufactured annually? A.) The flu causes mutations in the host cell DNA. B.) Sexual reproduction between flu viruses creates new strains. C.) The genes for the proteins on the exterior of the flu virus mutate frequently. D.) The flu virus develops methods to break down the vaccine.arrow_forwardViral “spikes” are usually involved in A. Uncoating the virus particle B. Killing the host cell C. Attaching to the host cell to aid in entry or exit D. Replicating DNAarrow_forwardWhat would happen to a virus that found its way to an environment filled only with cells that were outside of its host range? a) This virus would evolve until it was able to use the surrounding cells as hosts b) This virus would actively transport itself to another area in search of host cells C) This virus would replicate until it found cells that were within its host range d) Nothing; this virus would not be replicatedarrow_forward
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