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SCI 250 Week 3 Virus Matrix
Watch the “Viruses” animation.
Describe the characteristics of viruses by filling out the matrix in Appendix D.
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. | |
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 | |
Respond to the following question from Ch. 10 of Microbiology: Principles and Explorations in the space that follows. Looking at the five steps in viral replication, can you identify some promising ways to prevent or control viral infections? | |
Respond to the following question from Ch. 10 of Microbiology: Principles and Explorations in the space that follows. 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. | |