Log in
Sign up for FREE
arrow_back
Library

Virus Review '23

star
star
star
star
star
Last updated 18 days ago
27 questions
Required
3
Required
1
Required
1
Required
1
Required
4
Required
4
Required
1
Required
1
Required
7
Required
1
Required
1
Required
3
Required
3
Required
1
Required
3
Required
1
1
3
Required
0
Required
1
Required
1
Required
1
Required
3
Required
3
Required
4
Required
6
Required
6
Question 1
1.

Why are viruses NOT considered to be alive? Use NASA's definition of life to explain why viruses are not considered to be alive?


Question 2
2.

1. What is the primary function of the RNA genome in coronaviruses?

Question 3
3.

In humans, SARS CoV-2 viruses infect ONLY respiratory cells (nose/throat/lungs)?

Question 4
4.

From the video above, true or false? The virus contains additional proteins called "nucleoproteins" that help the virus replicate inside the host cell.

Question 5
5.
Match the viral structures with their correct labels
Other Answer Choices:
viral capsid
viral genome
viral envelope
spike protein
Question 6
6.
Match the viral functions with their correct labels
Other Answer Choices:
allows virus to attach to host cell via a "lock and key" match with receptors on the host cell surface
layer of cell membrane torn from original host cell - helps hide virus from immune system
protein coat/container that protect viral genome
contain genetic information to make all protein required to produce more viruses
Question 7
7.

What is a viral capsid?

Question 8
8.

What is the function of the viral envelope?

Question 9
9.
Other Answer Choices:
copying of viral proteins
release
attachment
copying of viral genome (RNA)
uncovering
assembly
entry
Question 10
10.

A virus connecting to the host cell membrane by its spike protein connecting to a host cell membrane receptor is called?

Question 11
11.

What occurs during viral replication and assembly?

Question 12
12.

Match the process with its correct definition.

Draggable itemarrow_right_altCorresponding Item
Viral Replication and Assembly
arrow_right_alt
virus hijacks cell's enzymes to copy its RNA/DNA and making of new virus particles in host cell
Viral Exit and Transmission
arrow_right_alt
Virus leaving the host cell by either burst the host cell membrane or budding from its membrane
Viral attachment
arrow_right_alt
Virus connecting to the host cell membrane using its proteins that match with host cell receptor proteins
Question 13
13.

Link each term to its proper definition.

Draggable itemarrow_right_altCorresponding Item
Vaccine
arrow_right_alt
a manufactured "drug" triggering immune response to certain infections without making the host sick (or as sick)
Capsid
arrow_right_alt
Protein coat shielding the viral genome
Viral Envelope
arrow_right_alt
Protective membrane from host cell surrounding some viruses
Question 14
14.

Watch this video - note SARS CoV-2 does spread well by touch or surfaces. SARS CoV-2 is different from other coronaviruses in that it ...

Question 15
15.

From the above video.... What important process needs to happen in the alveoli that allows you to "breathe"?

Question 16
16.

From the above video ... What are the macrophages supposed to do?

Question 17
17.

From the above video .... If too many immune cells start to fight the virus, what can happen to the alveoli?

Question 18
18.

From the above video .... What ends up killing most people who die from COVID-19?

Question 19
19.

Watch this video, then answer the question

A. What is a zoonotic disease?
B. What is causing more zoonotic diseased to jump to humans (3 reasons)?

Question 20
20.

What is herd immunity?

Question 21
21.

Why is immunizing a certain percentage of a population important for herd immunity?

Question 22
22.

What happens if the percentage of immune individuals in a population drops below the herd immunity threshold?

Question 23
23.

Explain which of these 2 images most likely represent "herd immunity threshold" where enough people in a population have been vaccinated to that people who are not vaccinated are protected?

Image A

Image B

Question 24
24.

Watch this video then summarize in your own words how mRNA vaccines work. Use the words antigen and antibody in your answer.

Question 25
25.
COVID-19 mRNA vaccine - go to this link to see an image of the vaccine. Remember this is the vaccine and NOT the virus. The inside light purple strands represent copies of __________. The light purple strands are copies of__________ of the spike protein and then "teach" other immune cells to recognize the COVID-19 spike protein as__________. This will allow the immune system to "remember" the spike protein and respond __________ if the person gets infected with the SARS CoV-2 virus.
Question 26
26.

Watch this video about the scientists who won the Nobel Prize for the development of an mRNA vaccine for COVID-19. Create a list of your 3 most important things you learned from this video

Question 27
27.

Why are viruses considered "obligate intracellular parasites"? Make sure you consider all 3 parts of the definition!