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Virology
Chapter 10 Vocabulary
44
Biology
10th Grade
02/05/2009

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Term
Virology
Definition
Study of viruses
Term
Jenner
Definition
Came up with the smallpox vaccine (cowpox)
Term
Pasteur
Definition
Came up with the rabies vaccine
Term
Iwanowski
Definition
Viruses are chemical in nature; much smaller than bacteria (TMV)
Term
Stanley
Definition
Crystallized the first virus (TMV)
Term
Virulent
Definition
Poisonous, dangerous… will make you sick
Term
Pathogen
Definition
Something that will make you ill
Term
Contagion
Definition
Is a disease you can catch
Term
Obligate Intracellular Parasites
Definition
Must live and reproduce inside a cell; depend on a host cell
Term
Core
Definition
Nucleic Acid of the virus (DNA or RNA)
Term
Capsid
Definition
Protein Coat; surrounds the core
Term
Envelope
Definition
Surrounds the capsid; added protection for the virus
Term
Projections
Definition
Stick of the surface of the envelope; used to protection and aid in entry to host
Term
Bacteriophage
Definition
Virus that invades bacteria
Term
Lytic Cycle
Definition
Form of viral replication that results in lysis; host cell death
Term
Adsorption
Definition
Virus lands on, attaches to the host cell
Term
Injection
Definition
DNA or RNA goes into the host
Term
Transcription
Definition
Viral DNA or RNA takes over the host DNA & RNA
Term
Replication
Definition
Make pieces of invading virus
Term
Assembly
Definition
Pieces put together to make whole viruses
Term
Lysis
Definition
Cell bursts & dies
Term
Lysogeny
Definition
Form of viral replication where the viral DNA hides and stays dormant in the host; host copies viral DNA
Term
Latent Infection
Definition
The virus remains hidden during this part of the infection
Term
Trigger Event
Definition
Change in the environment that activates the viral DNA
Term
Inactivated Vaccine
Definition
Vaccine with parts of viruses being given to the patient
Term
Attenuated Vaccine
Definition
Vaccine with weakened virus being given to the patient; requires cold storage; most often type given
Term
Antibodies
Definition
Proteins our bodies make to fight off viruses
Term
Interferon
Definition
Chemicals that are made by infected cells that warn and help other cells to be resistant to a virus
Term
Protease Inhibitor
Definition
Chemical that prevents a virus from making new proteins in the infected cell
Term
Retroviral
Definition
Expensive drugs that block reverse transcription; retrovirus can’t copy its RNA in the infected cell
Term
Fusion Inhibitor
Definition
Chemical that blocks a virus from invading a new cell; used to prevent infection
Term
Emerging Virus
Definition
Viruses that come from other species and are relatively new
Term
HIV
Definition
Virus that attacks immune system
Term
SARS
Definition
Bird flu; Virus from China that affects respiratory system
Term
Ebola
Definition
Hemorrhagic virus that liquefies your organs
Term
Hanta
Definition
Respiratory virus carried by rodents and transmitted by inhaling particles of feces and urine
Term
Hepatitis
Definition
Virus that attacks the liver; A and B have vaccines but C,D and E don’t
Term
West Nile Virus
Definition
Virus that causes your brain to swell; encephalitis
Term
Viroid
Definition
Ring of RNA that can replicate; causes potato spindle tuber disease
Term
Prion
Definition
Replicating protein
Term
Scrapie
Definition
Causes sheep brains to become sponge-like First prion discovered
Term
BSE
Definition
Bovine Spongiform Encephalitis; Mad Cow Disease
Term
Creutzfeldt - Jakob Disease
Definition
Human version of BSE
Term
Vector
Definition
An agent that carries a disease; insects, rodents and even people can serve in this role
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