2.1 Kahoot - Viruses, Viroids, and Prions

Question 1

What is a virus?

Answer 1

An infectious agent that replicates in a host.

Question 2

Viruses are non-living because…

Answer 2

They cannot replicate,move or make proteins

Question 3

How does a Virus get its energy?

Answer 3

Use the host cell

Question 4

The capsid of a virus is the

Answer 4

protective outer coat

Question 5

What is stored within a virus’ capsid?

Answer 5

Genetic Material (either DNA or RNA)

Question 6

A protein from the host cell membrane, that the virus uses to enter the host cell

Answer 6

spike

Question 7

All viruses have an envelope.

Answer 7

False

Question 8

The envelope of a virus is derived from the host’s…

Answer 8

membrane structures

Question 9

A virus lacking a lipid envelope is termed

Answer 9

naked

Question 10

All viruses are the same shape.

Answer 10

False

Question 11

What is this virus called?

Answer 11

Bacteriophage

Question 12

How big are virus particles?

Answer 12

smaller than bacteria

Question 13

Virus replicate by binary fission

Answer 13

False

Question 14

What are the six stages of the Lytic Cycle, in order:

Answer 14

Attachment, Penetration, Uncoating, Synthesis, Assembly, Release

Question 15

Lysogenic cycle is considered “dormant” because

Answer 15

The DNA is embedded in the cell

Question 16

parts of the Lysogenic cycle?

Answer 16

• Viral DNA merges with host cell DNA
• Every time the cell makes a copy, it also copies the virus
• Virus injects DNA into host cell

Question 17

Does the lytic or lysogenic cycle take longer?

Answer 17

Lysogenic Cycle

Question 18

The lysogenic cycle may turn into the lytic cycle..

Answer 18

due to a stressor

Question 19

What is a provirus?

Answer 19

A virus that remains dormant for many generations.

Question 20

things that help prevent a viral infection?

Answer 20

• getting vaccines
• washing hands
• using hand sanitizer

Question 21

cannot help prevent a viral infection?

Answer 21

taking antibiotics

Question 22

Zoonotic diseases:

Answer 22

are transferred from animals to humans

Question 23

What are Viroids comprise of?

Answer 23

RNA molecules

Question 24

Are viroids surrounded by a capsid?

Answer 24

No

Question 25

Known viroids infect...

Answer 25

plants

Question 26

Viroids are ___ than a virus

Answer 26

smaller

Question 27

A prion made of...

Answer 27

Protein

Question 28

What is a prion?

Answer 28

Infectious protein that affects normal functioning proteins

Question 29

Which disease is transmitted via ingestion of infected brain matter?

Answer 29

Creutzfeldt-jakob disease

Question 30

The discovery of viroids and prions came about long after the discovery of bacteria and viruses

Answer 30

because technology was needed to see things that small

Question 31

Why is it difficult to produce anti-viral drugs?

Answer 31

Viruses reproduce inside our cells so we could damage cells

Question 32

A company wanting to develop antiviral drugs should study the...

Answer 32

mechanism used by the virus to infect cells

Question 33

Effective antiviral drugs are usually associated with which properties?

Answer 33

Interference with viral replication

Question 34

What is an antigen?

Answer 34

the part of the pathogen which causes an immune response

Question 35

What is the purpose of vaccines?

Answer 35

to stimulate the production of antibodies.

Question 36

Which of these are features of the SECONDARY immune response?

Answer 36

Faster immune response, higher antibody concentration

Question 37

An attenuated virus is

Answer 37

A virus that has had its pathogenic properties removed

Question 38

A vaccine consists of_________:

Answer 38

- inactivated toxins or parts of microorganisms. - killed microorganisms - live, attenuated microorganisms

Question 39

Why is it difficult to make an effective vaccine

Answer 39

A virus mutates frequently.

Question 40

When is a vaccine used?

Answer 40

to try and prevent a viral infection