Characteristics of Viruses

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(No Transcript)
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Characteristics of Viruses
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Types of Viruses
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Bacteriophages
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Viral Reproduction
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Viral Diseases
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Prevention and Treatment
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Viral Reproduction
Characteristics of Viruses
Types of Viruses
Viral Diseases
Bacteriophages
Prevention Treatment
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Two things that make up a virus
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What is a protein coat and a nucleic acid?
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The protein coat is called this

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What is the capsid?
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Lipid layer that surrounds some viruses made from
the host cell membrane
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What is the envelope?
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Nucleic acid found in Retroviruses
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What is RNA?
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Projections made of protein and sugar chains on
the surface of an envelope to aid in attachment
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What are glycoproteins?
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Rabies and the measles viruses have this shape
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What is a helix?
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Viral shape consisting of 20 triangular sides
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What is an icosahedron?
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Enzyme found in retroviruses
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What is reverse transcriptase?
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Short pieces of protein that can cause Mad Cow
disease
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What are prions?
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Short strands of RNA without a capsid that cause
plant disease
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What are Viroids?
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Host cell for this phage
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What are bacteria?
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Most common types of these phages
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What are T-phages?
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Used to attach to their host cell
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What are tail fibers?
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Daily Double!!
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Attaches the head to the tail on this phage
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What is the collar?
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The only part of the phage NOT made of protein
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What is the nucleic acid?
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Required for a virus to become active and
reproduce
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What is a host cell?
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Term for a deadly virus
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What is virulent?
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Cell Bursting due to newly formed viruses
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What is lysis?
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Made of the hosts DNA and viral DNA joined
together
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What is a prophage?
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Life cycle of a virus that destroys the host cell
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What is the Lytic Cycle?
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Causes the disease known as AIDS
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What is the HIV virus?
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HIV is this type of virus
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What is a retrovirus?
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Viruses that cause influenza?
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What are myxoviruses?
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Caused by the bite of an infected animal which
attacks the nervous system
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What is rabies?
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A more severe case of chickenpox that often
occurs in adults
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What is shingles?
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Used to prevent many viral diseases
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What are vaccines?
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Daily Double!!
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Drugs that interfere with the synthesis of viral
nucleic acid
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What are antiviral drugs?
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Type of virus that has been genetically altered
so it cant cause disease
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What is an attenuated virus?
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Additional doses of vaccines given to extend a
persons protection against a virus
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What are booster shots?
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Vaccination has eradicated this viral disease in
the U.S.
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What is smallpox?
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Final Jeopardy
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Virology
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Wendell Stanley discovered viral structure by
crystallizing these
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What are Tobacco Mosaic Viruses?