Chapter 18

Question 1

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

Answer 1

Pathogen

Question 2

Is made only of single stranded RNA 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 correctly.

Answer 3

Prion

Question 4

A single viral particle, is made up of genetic material surrounded by a protein shelf.

Answer 4

Capsid

Question 5

Are viruses that infect bacteria

Answer 5

Bacteriophages

Question 6

A phage combines its DNA into the host cell’s DNA

Answer 6

Lysogenic infection

Question 7

Is an infection pathway in which the host cell bursts, releasing the new viral offspring into the host’s system.

Answer 7

Lytic infection

Question 8

Is the phage DNA inserted into the host cells 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

Answer 10

Vaccine

Question 11

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

Answer 11

Retrovirus

Question 12

Is actually poisoned by oxygen

Answer 12

Obligate anaerobe

Question 13

Organisms that need oxygen in their environment

Answer 13

Obligate aerobes

Question 14

Are also prokaryotes that can survive whether oxygen is present in the environment or not, this type of prokaryote is called…

Answer 14

Facultative aerobe

Question 15

Is a small piece of genetic material

Answer 15

Plasmid

Question 16

Is a long, whiplike structure outside of a cell.

Answer 16

Flagellum

Question 17

One process, prokaryotes can exchange parts of their chromosomes.

Answer 17

Conjugation

Question 18

A specialized cell with a thick, protective wall.

Answer 18

Endospore

Question 19

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

Answer 19

Virus

Question 20

Where enter viruses of eukaryotes ?

Answer 20

By endocytosis

Question 21

Example of viral infection:

Answer 21

Common cold, influenza, HIV

Question 22

How bacteria comes?

Answer 22

Rod-shaped, spiral, and spherical