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22 Cards in this Set

  • Front
  • Back
Seven Characteristics of Viruses
They aren't alive, sub-microscopic, not cells, not parasites, replicate using other cell's processes, found everywhere, covered by protein coat, and measured in nanometers.
What is a virus?
A particle made up of nucleic acid core and protein core.
Name two types of viruses
DNA Viruses, RNA Viruses
What is the purpose of extensions, filaments, and tails?
To detect the right cell for the virus to attach to.
List the five characteristics used to classify viruses
Size, Target Cell, Shape, Processes, Genetic Material.
What are the four basic shapes of viruses?
Isohedral, Polyhedral, Rod-Shaped, Spherical
Any organism or object that carries or transmits a disease-causing organism
A virus that causes hepatitis
Hepatitis B virus
A portion of the human nasal passage where viruses cause the common cold
A virus that infects a bacterial cell
A bacterium common to the human intestine
Escherichia coli
A virus that destroys its host during replication
Lytic Virus
A virus that does not kill its host during replication
Lysogenic Virus
A _______ is the piece of viral nucleic acid that has become part of the host cell DNA.
The _________ virus and the _______ virus remain in the body after the initial infection.
Hepatitis B, Herpes Simplex
Bacterial cells are not harmed byt he prophages they carry until the viral nucleic acid becomes activated and a ________ begins.
Lytic Cycle
Some viruses cause an increase in the _______ of certain bacteria to antibiotics.
__________ have become a useful tool for learning about all viruses.
Many viruses are destroyed quickly by the body's _______ blood cells
________ attack an invading virus and attach to it. The virus is destroyed by the antibody or by white cells.
________ is a protein substance that inhibits virus replication in an animal cell that has been invaded by a virus.
T or F: Viruses can be killed by drugs that kill bacteria.