Describe the unique characteristics of viruses as infectious agents.micrbiology
Viruses are most primitive cellular and non- cytoplasmic infectious agents.
Viruses can replicate only by infecting a host cell. They cannot reproduce on their own.
Viruses are not cells, they are a strand of genetic material within a protective protein coat called capsid.
Virus is an infectious particle that reproduces by commandeering a host cell and using its machinery to make more viruses. Viruses that infect only bacteria are called bacteriophages and those that infect only fungi are called mycophages.
They can mutate.
Viruses can infect animals, plants, and even other microorganisms.
Describe the unique characteristics of viruses as infectious agents.micrbiology
Viruses- Bacteriology -Describe the characteristics of viruses. -Explain receptors for bacterial viruses (bacteriophage). -How do bacteria prevent the invasion of foreign nucleic acids? -What is reverse transcriptase and which viruses use it? -What type of nucleic acids is in many important human disease-causing viruses? -List the possible consequences of viral infection of an animal cell? -Differentiate between animal and bacterial viruses. -Describe both lytic and lysogenic cycles. -Explain the potential advantages of lysogeny versus lysis for a temperate virus
Question 1. Chapter 6 Summarize the unique properties of viruses and explain which of these characteristics allo them to function as "parasites." Question 2. Chapter 7 What type of ecological association do biofilm communities exhibit? Explain why biofilm infections are so difficult to treat and discuss one potential method for targeting these microbia communities based upon new biofilm research. J 00 co
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difinitions of each word
Chapter Thirteen Viruses, Viroids and Prions General Characteristics of Viruses: Obligate intracellular parasites: Host range: Bacteriophages (phages): Phage therapy: Viral size: Viral structure (Virion): Nucleic acid: Capsid: Capsomeres: Envelope: Spikes: Enveloped viruses: Nonenveloped viruses: Morphology: Helical viruses: Polyhedral viruses: Complex viruses: Taxonomy of viruses: