Review Chapter 18.1 And 18.2

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

Capsid

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

lysogenic infection

Question 8

is the phage DNA inserted into the host cell’s DNA. In organisms other than bacteria, this stage is called a provirus.

Answer 8

prophage

Question 9

• exist in a variety of shapes and sizes.
• differ in shape and in ways of entering host cells
• have a simple structure
• Genetic materials

Answer 9

Viruses

Question 10

a protein she’ll

Maybe a lipid envelope a protective outer coat

Answer 10

Capsid

Question 11

What is the size range of a virus?

Answer 11

The biggest

Question 12

What is the size range of the prion?

Answer 12

Are the smaller

Question 13

What is the size range of the viroids?

Answer 13

The medium

Question 14

What is the biggest size range?

Answer 14

Virus

Question 15

What is the medium size range?

Answer 15

Viroid

Question 16

What is the smaller size range?

Answer 16

Prion