Download Viruses Biology Blitz Rewind

Test Date: _____________
Viruses Biology Blitz Rewind
Name:____________________
Comparing Viruses to Cells
Place a check in the box if the group has the described characteristic, leave it blank if they do not.
Characteristics of Living Organisms
PROKARYOTES
Bacteria
EUKARYOTES
Protists, Plants, Animals, Fungi
VIRUSES
Can it grow and develop?
Can it reproduce itself?
Can it process and use energy?
Can it respond to its environment?
Is it composed of cells?
Does it have a genetic code?
Can it maintain homeostasis?
Viruses: General Knowledge
1. What two structures will all viruses have?
Circle the all diagrams below that are NOT a viruses.
2. Can you take antibiotics to stop a viral infection? EXPLAIN.
3. How do viruses replicate?
4. What do viruses inject into the host cell?
Viral Replication

Cycle:______________
In the _________________________, the viral DNA takes
over all cellular processes, copies viral DNA, assembly viral
parts, and lyses host cell releasing new viruses.
Example of a virus that uses this type of replication: ________

In the _________________________, the viral DNA is
inserted into host DNA, and the viral DNA is copied along
with the host DNA, not harming the host cell.
Example of a virus that uses this type of replication: _________
Cycle:______________
.1. Which cycle has the potential to cause more harm? WHY?
2. Is HIV lytic or lysogenic? AIDS? Chicken pox? The flu?
Test Date: _____________
Viruses Biology Blitz Rewind
Name:____________________
Immune Responses
1. What is an antigen?
2.
What is an antibody?
3.
What is the role of macrophages (white blood cells)?
4.
Assume the antigen in the diagram to the right is the influenza
(flu) virus. Based on the diagram, are you likely to get sick?
EXPLAIN
Vaccines
Smallpox is a disease caused by a specific virus, while the common cold can be
caused by over 100 different viruses. It is possible to develop a vaccine to prevent
smallpox, but it is difficult to develop a vaccine to prevent the common cold.
1.
Why it would be difficult to develop a vaccine to be used against the common
cold?
2.
What substance in a vaccine makes the vaccine effective?
3.
What is triggered or produced by the body as a result of a vaccination?
Vaccines are used to stimulate an immune response by
injecting the body with an antigen (weakened form of a
virus). The immune response results in the production
of antibodies, which recognizes viral antigens. The
antibodies act like handcuffs, holding onto the viral
antigen until a white blood cell can come destroy it.
4.
If you get the chicken pox as a child, in general, will you ever get them again?
EXPLAIN
This helps the body maintain homeostasis by allowing
the immune system to recognize and respond to
infections quickly, without you getting sick.
5.
If you got influenza last winter and again this winter, was it the same virus?
EXPLAIN
Putting it all together
1.
What effect would HIV antigens in the diagram to the
left have on the white blood cells?
2.
What is the relationship between HIV and AIDS?
3.
What is the effect on the body when it has been
weakened by AIDS?