Would you classify viruses as living, nonliving, or semiliving

Appendix D
SCI/250 Version 3
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University of Phoenix Material
Appendix D – Viruses
Review Chapter 10 of Microbiology: Principles and Exploration and the following Virus Animation to help you complete the matrix below.
http://higheredbcs.wiley.com/legacy/college/black/0471420840/animations/ch10/ch10_Viruses/index.html

Review Figure 10.1 of Microbiology: Principles and Explorations. Determine what the functions of the following components are:
Component Function
Capsid
Envelope
Nucleic acid
Spikes (glycoproteins)
Respond to Critical Thinking Question 1 in Ch. 10 of Microbiology: Principles and Explorations in the space that follows.
The extreme simplicity of viruses eliminates most of the vulnerable features found in cellular organisms such as bacteria. Antibacterial products commonly attack cell walls, plasma membranes, and cytoplasm, none of which are present in viruses.
Using two or three sentences, explain in your own words how viruses are classified by type of nucleic acid, capsid shape, and presence of envelope.
Explanation
Nucleic acid
Capsid shape
Presence of envelope
Review Ch. 10 of Microbiology: Principles and Explorations. Briefly describe each of the stages of viral reproduction.
Stage Description
Absorption
Penetration
Synthesis
Maturation
Release
Looking at the five steps in viral replication, can you identify some promising ways to prevent or control viral infections?
Would you classify viruses as living, nonliving, or semiliving? Explain your answer.
.
Review Table 10.7 of Microbiology: Principles and Explorations. Define the following types of viruses and viruslike agents.
Virus/Viruslike agent Definition
Satellites
Viroids
Prions
Respond to the following questions in the space that follows. Can viruses cause cancer? Does it matter if the virus is composed of DNA or RNA? Explain your answers.

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