Biology Virus Study Guide

Front 1

Seven Characteristics of Viruses

Back 1

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.

Front 2

What is a virus?

Back 2

A particle made up of nucleic acid core and protein core.

Front 3

Name two types of viruses

Back 3

DNA Viruses, RNA Viruses

Front 4

What is the purpose of extensions, filaments, and tails?

Back 4

To detect the right cell for the virus to attach to.

Front 5

List the five characteristics used to classify viruses

Back 5

Size, Target Cell, Shape, Processes, Genetic Material.

Front 6

What are the four basic shapes of viruses?

Back 6

Isohedral, Polyhedral, Rod-Shaped, Spherical

Front 7

Any organism or object that carries or transmits a disease-causing organism

Back 7

Vector

Front 8

A virus that causes hepatitis

Back 8

Hepatitis B virus

Front 9

A portion of the human nasal passage where viruses cause the common cold

Back 9

Rhinencephalon

Front 10

A virus that infects a bacterial cell

Back 10

Bacteriophage

Front 11

A bacterium common to the human intestine

Back 11

Escherichia coli

Front 12

A virus that destroys its host during replication

Back 12

Lytic Virus

Front 13

A virus that does not kill its host during replication

Back 13

Lysogenic Virus

Front 14

A _______ is the piece of viral nucleic acid that has become part of the host cell DNA.

Back 14

Prophage

Front 15

The _________ virus and the _______ virus remain in the body after the initial infection.

Back 15

Hepatitis B, Herpes Simplex

Front 16

Bacterial cells are not harmed byt he prophages they carry until the viral nucleic acid becomes activated and a ________ begins.

Back 16

Lytic Cycle

Front 17

Some viruses cause an increase in the _______ of certain bacteria to antibiotics.

Back 17

Resistance

Front 18

__________ have become a useful tool for learning about all viruses.

Back 18

Bacteriophage

Front 19

Many viruses are destroyed quickly by the body's _______ blood cells

Back 19

White

Front 20

________ attack an invading virus and attach to it. The virus is destroyed by the antibody or by white cells.

Back 20

Antibodies

Front 21

________ is a protein substance that inhibits virus replication in an animal cell that has been invaded by a virus.

Back 21

Interferon

Front 22

T or F: Viruses can be killed by drugs that kill bacteria.

Back 22

False