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Viruses

Review for Viruses Quiz

TermDefinition
virus a tiny, nonliving particle that enters and then reproduces inside a living cell
host an organism that provides a source of energy for a virus or another organism
parasites organisms that lives in or on a host and cause them harm (viruses act like these)
bacteriophage a robotlike shaped virus that infects bacteria
reproduction the one life process that viruses seem to do (with the energy from a host cell)
protein coat is on the outside of the virus, protects it, and helps it to attach to host cell
genetic material in core (or center) of virus and contains instructions for making new viruses
lock and key the shape of proteins on the outside of a virus allow it to attach to only certain cells
active virus immediately begins taking over cell functions and multiplying (ex. flu and common cold)
hidden virus virus's genetic material hides and becomes part of the cell's genetic material for a period of time before multiplying (ex. cold sores and HIV)
gene therapy when virus is used as a "messenger service" to enter cells and deliver genetic material that is needed
common viral shapes (4) round, tube-shaped, bullet-shaped and robotlike
why viruses are considered to be nonliving they do not have all of the characteristics of life (they don't carry out all 7 life processes)
treatment for most viral illnesses bed rest and drinking fluids
how viruses are named illness (sickness) they cause, organism they infect, where it was first found, who discovered it
Size of viruses much smaller than cells
Created by: jlodico