Microbiology: A Systems Approach
5th Edition
ISBN: 9781259706615
Author: Marjorie Kelly Cowan Professor
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 6, Problem 2MCQ
Viruses are known to infect
- a. plants.
- b. bacteria.
- c.
fungi . - d. all organisms.
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Which of the following refer/s to viruses?
A. They are disease-causing.
B. They contain DNA or RNA.
C. They must have protection for their own genetic material.
D. They are parasitic.
A, B, C only
A, B, C, D
A, C, D
B, C, D
Why don’t scientists usually consider viruses living?
A.They do not have DNA
B.They do not have cells
C.They cannot reproduce
Which of the following is a property of life that viruses lack?
A. The manufacture and use of complex carbon containing molecules
B. The potential to grow and expand their populations
C. Engages in self-sustaining biological processes such as homeostasis and metabolism
D. The potential to pass hereditary material to offspring
Chapter 6 Solutions
Microbiology: A Systems Approach
Ch. 6.1 - Describe the significance of viruses being...Ch. 6.2 - Summarize arguments on both sides of the debate...Ch. 6.2 - Identify effective terms to describe the behavior...Ch. 6.3 - Prob. 4AYPCh. 6.3 - Describe the function and structure(s) of viral...Ch. 6.3 - Distinguish between enveloped and naked viruses.Ch. 6.3 - Prob. 7AYPCh. 6.3 - Compare and contrast the composition of a viral...Ch. 6.3 - Diagram the possible nucleic acid configurations...Ch. 6.4 - Develop two arguments against assigning species...
Ch. 6.4 - Demonstrate how family and genus names in viruses...Ch. 6.5 - Diagram the six-step life cycle of animal viruses.Ch. 6.5 - Define the term cytopathic effect and provide one...Ch. 6.5 - Provide examples of persistent and transforming...Ch. 6.5 - Provide a thorough description of lysogenic and...Ch. 6.6 - List the three principal purposes for cultivating...Ch. 6.6 - Describe three ways in which viruses are...Ch. 6.7 - Prob. 18AYPCh. 6.8 - Analyze the relative importance of viruses in...Ch. 6.8 - Prob. 20AYPCh. 6 - A virus is a tiny infectious a. cell. b. living...Ch. 6 - Viruses are known to infect a. plants. b....Ch. 6 - The nucleic acid of a virus is a. DNA only. b. RNA...Ch. 6 - The general steps in a viral multiplication cycle...Ch. 6 - Prob. 5MCQCh. 6 - In general, RNA viruses multiply in the cell ____,...Ch. 6 - Viruses cannot be cultivated in/on a. tissue...Ch. 6 - Clear patches in cell cultures that indicate sites...Ch. 6 - Label the parts of this virus. Identify the...Ch. 6 - Circle the viral infections from this list:...Ch. 6 - In lysogeny, viral DNA is inserted into the host...Ch. 6 - A viral capsid is composed of subunits called...Ch. 6 - The envelope of an animal virus is derived from...Ch. 6 - The nucleic acid of animal viruses enters the cell...Ch. 6 - Viruses that persist in the (host) cell and cause...Ch. 6 - Provide evidence in support of or refuting the...Ch. 6 - Summarize the unique properties of viruses and...Ch. 6 - Prob. 3CTQCh. 6 - Compare and contrast the processes of latency and...Ch. 6 - Use the Internet to search prion diseases, and...Ch. 6 - From chapter 2, figure 2.23: A virus containing...Ch. 6 - Prob. 1CM
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- The viral ________ plays a role in attaching a virion to the host cell. a. core b. capsid C. envelope d. both b and carrow_forwardA bacteriophage can infect ________. a. the lungs b. viruses c. prions d. bacteriaarrow_forwardWhich of the following statements correctly describes viruses? Select one: A. They can reproduce by dividing. B. They cannot reproduce without a host cell. C. They have a genome similar to prokaryotic and eukaryotic cells. D. They can carry out their own metabolic activities.arrow_forward
- Why is the Nipah virus a great illustration of a zoonotic disease? A. Because it's carried by fruit bats across America but it's not even noticed by the American people. B. Because it's carried by cats across Asia and easily spills over into humans. C. Because it's carried by fruit bats across Asia but almost never spills over into humans. D. Because it's carried by fruit bats across Asia and easily spills over into humans.arrow_forwardViruses 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-carrow_forwardWhich of the following is NOT used to treat active viral disease? a. Vaccines b. Antiviral drugs c. Antibiotics d. Phage therapyarrow_forward
- Why is the Nipah virus a great illustration of a zoonotic disease? A. Because it's carried by fruit bats across Asia but almost never spills over into humans. B. Because it's carried by cats across Asia and easily spills over into humans. C. Because it's carried by fruit bats across Asia and easily spills over into humans. D. Because it's carried by fruit bats across America but it's not even noticed by the American people.arrow_forwardWhich of the following statements concerning viruses and human health is false? a-in many diseases caused by viruses, the virus attacks cells as it reproduces b- many viral diseases can be controlled through vaccinations c- some viruses can remain dormant in the body for years before disease symptoms appear d-most viral infections are difficult to treat, but they can be finally destroyed by antibioticsarrow_forwardWhich of the following is characteristic of all viruses? A. A protein capsid. B. a viral envelope C. a nucleic acid genome. D. A and C. E. A, B and C. IT IS NOT Darrow_forward
- Which of the following statements seemingly refute the fact that viruses are nonliving? A.They reproduce themselves only inside a host cell. B. They contain no enzymes. C. They can change over time, with the emergence of new strains. D. They cause diseases similar to those caused by bacteria. E. They are composed of protein and nucleic acid.arrow_forwardWhat is the basic classification of viruses. In other words, if you find a new virus, what is the first thing to determine? A. Is this a DNA or an RNA virus? B. Does it cause blue snotty nosed fever? C. does it have a vector? D. does it infect humans?arrow_forwardWhich of the following is true? A. Viruses cannot reproduce outside a host cell. B. Prions are infectious proteins. C. Viroids lack a protein coat. D. Some viruses cause cancer. E. All of the above.arrow_forward
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