Science Test 3 - Viruses

Term
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virus
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Terms in this set (16)
virus
a nonliving infectious agent.
made of nucleic acids inside a protein coat
Host
provides nutrients to another organism
Parasite
An organism that feeds on a living host
Disease
upset balance of homeostasis of the host
Can be physically seen in changes of the host
phage
eat, swallow
How do viruses get named?
1.) After the disease they cause
2.) organ or tissue they infect
3.) Genus and Species name
4.) a code with numbers
example (Covid 19)
Name two parts in all viruses
Inner core of nucleic acid (either RNA or DNA)
outer protein called capsid
Nucleic Acid (DNA or RNA)
inner core of a virus
Capsid
Outer protein coat of a virus
Some Viruses also have this extra part
Envelope- large viruses outside layer
Virologystudy of virusesVirologistscientist who studies virusesLytic Cycle1.)virus attachs to host cell 2.) virus injects nucleic acid into host cell 3.) host cell makes copies of virus! 4.) new virus assembled inside cell 5.) host cell breaks open and releases new virusViral Replication Cycle1. adsorption (attachment) 2. penetration (entry) 3. replication (synthesis) 4. assembly 5. release into host bodyIdentify several viral diseasesChicken pox, common cold, influenza(flu), measles, mumps, polio, Rabies , Hepatitis B, ebola, hiv, west nileVaccinationinjection of a weakened or mild form of a virus to produce immunity