Viruses Test '23

Instructions

remember no copy and pasting!

Required

5

What is a virus?

Required

3

Why are viruses considered "parasites" (obligate intracellular parasites)?

Required

5

In general, how does a vaccine work to protect against a viral infection?

Required

10

Write a summary of what you have learned about the SARS-CoV-2 virus... where did it come from? How does it infect people? What tissues/organs does it infect? How does it make people sick/cause their death?

Required

1

What does a virus use to attach to a cell that it is going to infect?

Required

2

The genome of a virus is made of _______ or _______ 

Required

1

Every virus has a rigid shell made of proteins called a ___________ that holds the genetic material and in some viruses, some enzymes.

1

Why do viruses change over time?

Required

6

Put the steps/stages of a typical viral life cycle in order

entry/penetration of virus into host cell
production/copying - viral DNA or RNA hijacks cell machinery to make more copies of the viral DNA or RNA and viral proteins
attachment of virus to host cell
uncovering/release - viral capsid breaks apart & DNA or RNA and enzymes are released into cell
release - new viruses "bud" from cell membrane or the cell bursts to release viruses
assembly - viral DNA or RNA and viral proteins come together to make more virus particles

Required

7

What does herd immunity allow for?

Required

1

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

Required

1

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

Required

3

Viruses Test '23

What is a virus?

Why are viruses considered "parasites" (obligate intracellular parasites)?

In general, how does a vaccine work to protect against a viral infection?

Write a summary of what you have learned about the SARS-CoV-2 virus... where did it come from? How does it infect people? What tissues/organs does it infect? How does it make people sick/cause their death?

What does a virus use to attach to a cell that it is going to infect?

Every virus has a rigid shell made of proteins called a ___________ that holds the genetic material and in some viruses, some enzymes.

Why do viruses change over time?

Put the steps/stages of a typical viral life cycle in order

What does herd immunity allow for?

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

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

Extra Credit - What is special about the COVID-19 vaccines? How are they different than all previous vaccines? How do they work?

What is a virus?

Why are viruses considered "parasites" (obligate intracellular parasites)?

In general, how does a vaccine work to protect against a viral infection?

Write a summary of what you have learned about the SARS-CoV-2 virus... where did it come from? How does it infect people? What tissues/organs does it infect? How does it make people sick/cause their death?

What does a virus use to attach to a cell that it is going to infect?

Every virus has a rigid shell made of proteins called a ___________ that holds the genetic material and in some viruses, some enzymes.

Why do viruses change over time?

Put the steps/stages of a typical viral life cycle in order

What does herd immunity allow for?

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

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

Extra Credit - What is special about the COVID-19 vaccines? How are they different than all previous vaccines? How do they work?