Microbiology: An Introduction
11th Edition
ISBN: 9780321733603
Author: Gerard J. Tortora, Berdell R. Funke, Christine L. Case
Publisher: Benjamin Cummings
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Chapter 13, Problem 6MCQ
The ability of a virus to infect an organism is regulated by
- a. the host species.
- b. the type of cells.
- c. the availability of an attachment site.
- d. cell factors necessary for viral replication.
- e. ail of the above
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Students have asked these similar questions
(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 (typed format not handwritten)
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The host protiens specific for individual virus classes are:
a. Docking proteins
b. DNA polymerases
c. Proteases
d. RNases
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.
Chapter 13 Solutions
Microbiology: An Introduction
Ch. 13 - Why do we classify viruses as obligatory...Ch. 13 - List the four properties that define a virus, what...Ch. 13 - Describe the four morphological classes of...Ch. 13 - DRAW IT Label the principal events of attachment,...Ch. 13 - Compare biosynthesis of a + stranded RNA and a ...Ch. 13 - Prob. 6RCh. 13 - Why is it difficult to determine the etiology of a...Ch. 13 - Prob. 8RCh. 13 - Plant viruses can be cultured in (c) __________.Ch. 13 - NAME IT Identify the viral family that infects...
Ch. 13 - Discuss the arguments for and against the...Ch. 13 - In some viruses, capsomeres function as enzymes as...Ch. 13 - Why was the discovery of simian AIDS and feline...Ch. 13 - Prophages and proviruses have been described as...Ch. 13 - Prob. 1MCQCh. 13 - The molecule serving as mRNA can be incorporated...Ch. 13 - Prob. 3MCQCh. 13 - Prob. 4MCQCh. 13 - An example of lysogeny in animals could be a. slow...Ch. 13 - The ability of a virus to infect an organism is...Ch. 13 - Which of the following statements is false? a....Ch. 13 - Prob. 8MCQCh. 13 - Prob. 9MCQCh. 13 - Prob. 10MCQCh. 13 - Prob. 1CAECh. 13 - A newborn female developed extensive vesicular and...Ch. 13 - Prob. 3CAE
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
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- Regarding 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_forwardDetection of active viruses in a lab setting depends on: A. Counting virus protein capsids B. Incubation in medium that promotes the virus metabolism C. Prevention of plaque forming units D. Lysis of an infected cellarrow_forwardThe following statements are correct, except? a. Non-enveloped viruses bind to their host cells via their capsid surface. b. The cell receptor may determine the host range and tissue tropism of viruses. c. Virus particles bind to receptors on their host cells to initiate entry. d. Naked virus particles bind via their transmembrane glycoproteins.arrow_forward
- a. How are viral envelopes formed? Why are enveloped viruses that infect plants and bacteria rare? b. Outline the life cycle options of a temperate phage upon entering a host cell. c. Consider the 5 steps of a virus life cycle. List three structures and/or processes that are unique to viruses and would make good drug targets for an antiviral agent. Explain your rationale for each choice.arrow_forwardWhich of the following descriptions correctly identifies a main structural difference between viruses with envelopes and viruses without envelopes? O A. Only viruses with envelopes package their genetic material by engulfing it. O B. Only viruses without envelopes interact with receptor proteins on the surface of the host cell. O. Only viruses without envelopes can release their genetic material into the cytoplasm of the host. O D. Only viruses with envelopes have their contents enclosed by a membranous layer containing lipids.arrow_forwardConsider the separate stages of an animal virus life cycle. Assemble a short list of structures and processes that are unique to the virus and would make good drug targets for an antiviral agent. Explain your rationale for each choice.arrow_forward
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