18.1

Question 0

Any living organism or particle that can cause an infectious disease is called an infectious agent, or

Answer 0

Pathogen

Question 1

is an infectious particle made only of a strand of DNA or RNA surrounded by a protein coat.

Answer 1

Virus

Question 2

are infectious particles that cause disease in plants

Answer 2

Viroids

Question 3

is an infectious particle made only of proteins that can cause other proteins to fold incorrectly.

Answer 3

Prion

Question 4

is made up of genetic material surrounded by a protein shell called a

Answer 4

Caspisd

Question 5

are viruses
that infect bacteria.

Answer 5

Bacteriophages

Question 6

is an infection pathway in which the host cell bursts, releasing the new viral offspring into the host’s system, where each then infects another cell.

Answer 6

lytic infection

Question 7

a phage combines its DNA into the host cell’s DNA.

Answer 7

lytic infection

Question 8

is the phage DNA inserted into the host cell’s DNA.

Answer 8

Prophage

Question 9

is a rapid outbreak of an infection that affects many people.

Answer 9

Epidemic

Question 10

is a substance that stimulates the body’s own immune response against invasion by microbes.

Answer 10

Vaccines

Question 11

Severe acute respiratory syndrome

Answer 11

SARS

Question 12

Human immunodeficiency virus,

Answer 12

HIV

Question 13

is a virus that contains RNA and uses an enzyme called reverse transcriptase to make a DNA copy.

Answer 13

Retrovirus

Question 14

What is the first defense of your body?

Answer 14

The skin

Question 15

What are other ways that the viruses can enter into your body?

Answer 15

Mouth
Nose,
Eyes

Question 16

What are some examples for viral infection?

Answer 16

Common cold,influenza,H.I.N,(H1N1),sars