viruses 2.2

Question 1

virus

Answer 1

a small infectious particle that contains genetic material without a capsid

Question 2

capsid

Answer 2

a protein coat that surrounds genetic material

Question 3

bacteriophage

Answer 3

a virus that infects bacteria

Question 4

epidemic

Answer 4

a large scale outbreak of disease in a particular region

Question 5

pandemic

Answer 5

when an epidemic spreads over a widespread geographic region

Question 6

5 characteristics of viruses

Answer 6

nonliving
no cytoplasm
dont produce energy
cannot grow
dont produce waste

Question 7

4 structures of viruses

Answer 7

helixal/cylindrical
polyhedral
spherical
complex

Question 8

viral reproduction describe

Answer 8

a virus enters the host cell and the viral dna or rna takes control of the cell. the cell copies the messed up genetic material and spreads the virus once the cell membrane is broken.

Question 9

lysogenic cycle

Answer 9

a dormant stage in which the host cell continues ot grow and divide copying its own dna with the viral dna

Question 10

lytic cycle

Answer 10

an active stage in which lysis occurs, rupturing the cell and releasing many new viruses

Question 11

vaccines

Answer 11

weakened viruses or viral information is given to an individual to trigger an immune response, without causing infection. this allows the body to be prepared if it ever comes in contact with the real virus.