Microbiology: A Systems Approach
4th Edition
ISBN: 9780073402437
Author: Marjorie Kelly Cowan Professor
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 6, Problem 4MCQ
The general steps in a viral multiplication cycle are
- a. adsorption, penetration, synthesis, assembly, and release.
- b. endocytosis, uncoating, replication, assembly, and budding.
- c. adsorption, uncoating, duplication, assembly, and lysis.
- d. endocytosis, penetration, replication, maturation, and exocytosis.
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Students have asked these similar questions
After attachment and entry, the next step of viral lifecycle is to
A.translate viral proteins
B. assembly new viral particles
C. replicate the genome
D. release new virions
(i) Describe each way viruses may be classified. And Define each of the following parts of a virus, their composition/structure, and explain their role in the viral life cycle:
a. Capsid
b. Capsomere
c. Nucleocapsid
d. Envelope
e. Spikes
To infect their specific host cells, viruses go through these chronological steps EXCEPT
a.
Release of progeny viruses
b.
Absorption and penetration of the viral particles
c.
Uncoating of the nucleic acid of the viral particles
d.
Synthesis and assembly of viral particle components
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 - Prob. 2CFCh. 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 - Prob. 1CFCh. 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 - Prob. 4CTQCh. 6 - Prob. 5CTQCh. 6 - Prob. 6CTQCh. 6 - Prob. 7CTQCh. 6 - Prob. 8CTQCh. 6 - Prob. 9CTQCh. 6 - Prob. 10CTQCh. 6 - Prob. 1CCCh. 6 - Prob. 2CCCh. 6 - Prob. 3CCCh. 6 - Prob. 4CCCh. 6 - Prob. 1VCCh. 6 - Prob. 1CM
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- . Disabling surface protease enzymes on lung cells would most likely interfere with what stage of viral reproduction? A). Viral RNA replication. B). Virus binding to the host cell. C). Formation of new virus membranes in the host cell. D). Creation of new spike protein.arrow_forwardSymptoms of viral infections are caused by: (choose all that apply) A. Actions of the virus that result in cell damage or death B. Actions of the immune system that result in cell damage or death C. Changes in a cell's genetics that result in cancerarrow_forwardRegarding enveloped viruses, which of the following is true of the viral envelope? A. It has the same structure as a cell wall B. It is resistant to soaps/detergents C. It is composed of capsid proteins D. It is a phospholipid bilayer derived from a membrane of its host cell 42.arrow_forward
- Arrange the following list into the correct sequence for viral reproduction: 1. penetration 2. assembly 3. replication 4. attachment 5. release (a) 1, 2, 3, 4, 5 (b) 5, 2, 3, 4, 1 (c) 4, 1, 3, 2, 5 (d) 4, 1, 2, 3, 5 (e) 3, 1, 2, 4, 5arrow_forwarda. Which type of viruses can be directly used for translation? a) dsRNA b) Positive ssRNA c) Retroviruses d) Negative ssRNA b. An antiviral drug specifically modifies viral receptors on a eukaryotic host cell. How might this affect the viral reproductive cycle? It would enhance the process of viral apoptosis It would result in the degeneration of the viral capsid It would facilitate the process of viral endocytosis It would prevent the virus from attaching to the host cellarrow_forwardWhich of the following statements are correct for DNA viruses? Mark all that apply. A.The genome consists of dsRNA B. A provirus stage occurs during viral replication C. The genome consists of two identical strands of DNA D. Replication requires reverse transcriptase Replication requires DNA polymerase E.The viral DNA must enter the nucleus for its replication F. Uncoating must occur for the virus to be replicated G.The viral genome acts as a template for production of viral proteinsarrow_forward
- The host protiens specific for individual virus classes are: a. Docking proteins b. DNA polymerases c. Proteases d. RNasesarrow_forwardWhich of the following events occurs in the lytic cycle of bacteriophage T4 infection but NOT in the lysogenic cycle? a.both digestion of host DNA and viral proteins synthesis b.attachment c.viral protein synthesis d.digestion of host DNA e.entryarrow_forwardEukaryotic viruses a.) Can attach to LPS to promote viral entry b.) Can replicate in the host cell nucleus c.) Can inject their genome into the eukaryotic nucleus d.)Do not utilize host ribosomes for protein synthesis e.) Do not utilize host polymerases for genome replicationarrow_forward
- we can stop the biosynthesis stage of the viral life cycle (not the stages before it) by preventing/inhibiting: A) fusion of the envelope and the plasma membrane B) replication and expression of viral nucleic acid/genome C) the virus's attachment molecules from binding to the host cell receptor D) new copies of viral nucleic acid from combining with newly made viral proteins E)buddingarrow_forwardWhich of the following statements are correct for RNA viruses? Mark all that apply. A.Replication requires reverse transcriptase B. Uncoating must occur for the virus to be replicated C.The genome consists of two identical strands of ssRNA D.Replication requires RNA dependent RNA polymerase E. The viral DNA acts as a template for production of viral proteins F.Protease enzyme is required for biosynthesis and maturation of virions G. A provirus stage occurs during viral replicationarrow_forwardWhich 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_forward
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