Virus Notes

Multiple Choice

A virus is

• living

• non living

• dead

Multiple Select

How does COVID-19 spread?(check all answers that apply).

• Through email

• Sneezing and couging without covering your mouth

• Close contact with people

• By not washing your hands

Multiple Choice

What structure determines the shape of the virus?

• capsid

• nucleic acid

• spikes

• envelope

Multiple Choice

What is the difference between the function of the glycoprotein structures of an HIV virion and the cilia of an animal cell?

• The glycoprotein structures are used for attachment, and the cilia are used to move fluids around the cell

• The glycoprotein structures are used to obtain nutrition, and the cilia are used to secrete proteins

• The glycoprotein structures are used to provide physical support for the viral envelope, and the cilia strengthen the cell membrane

• The glycoprotein structures are used for defense, and the cilia are sued for locomotion

Multiple Choice

Virus' genetic information contains the code to:

• make copies of itself

• obtain and use energy

• reproduce

• grow and develop

Multiple Choice

A virus is bigger than a cell.

• True

• False

Multiple Choice

Which best describes the basic structure of a virus?

• nucleic acid strand surrounded by a protein coat

• a tail surrounded by a protein coat

• a tail surrounded by a carbohydrate coat

• nucleic acid strand surrounded by a carbohydrate coat

Multiple Choice

What part of the phage is the DNA?

• A
• B
• C
• D

Multiple Choice

What do viruses need to reproduce?

• they need genetic material
• They need a host cell
• They need  bacteria
• They need insulin

Multiple Choice

What type of cell does this infect?

• Lung cells

• Nose cells

• Bacteria Cells

• Both nose and lung cells

Multiple Choice

The flu, which is caused by Influenza, is caused by a?

• Bacteria

• Virus

Multiple Choice

Which are considered pathogens which can cause diseases?

• Viruses

• Bacteria

• Both viruses and bacteria

Multiple Choice

These are considered to be living organisms _________________.

• Viruses

• Bacteria

• Both viruses and bacteria

Multiple Choice

The projections on the outside of tis virus are used for

• genetic material

• attachment

• alignment

• reproduction

Multiple Choice

Which has the following steps in order for the LYTIC Cycle

A- Assembly

B- Attachment

C- Reproduction

D- Release

E- Entry

• A B C D E

• B E A C D

• A B C E D

• B A E C D

Multiple Choice

What structure determines the shape of the virus?

• capsid

• nucleic acid

• spikes

• envelope

Multiple Choice

Which cycle kills the host cell immediately?

• Lytic

• Lysogenic

Multiple Choice

During which cycle does a virus's genetic information become a part of the host cell's genetic information?

• Lytic

• Lysogenic

Multiple Choice

A virus that goes through the ______ cycle will allow you to feel symptoms immediately due to the cells lysing.

• Lytic

• Lysogenic

Multiple Choice

A virus that hides within the host cell for up to years is going through the _______ cycle.

• Lytic

• Lysogenic

Match

Match the following pictures to their names:

Eukaryotic Cell

Prokaryotic Cell

Bacteriophage virus

Flu virus

• Eukaryotic Cell

• Prokaryotic Cell

• Bacteriophage virus

• Flu virus

Explanation Slide...

THe lysogenic cycle is a dormant cycle for the virus - it integrates its DNA into the cell but doesn't not activly take over.

Multiple Choice

When a virus takes over a cell, it can cause the cell to create many more copies of the virus until the cell bursts open and releases them. What part of the virus's lifecycle is this?

• Lytic

• Lysogenic

Multiple Choice

Antibiotics ________ treat viral infections.

• can

• cannot

Multiple Choice

One you are infected with a virus, you can only treat the symptoms.

• True

• False

Multiple Choice

Vaccines are a preventative measure.

• True

• False

Multiple Choice

When given a vaccine, your body recognizes it as an invader and builds _________ against the virus.

• lysogens

• capsids

• antibodies

• immunoglobulins

Multiple Choice

Which virus was completely eradicated by vaccines?

• small pox

• measles

• polio

• human papiloma virus

Explanation Slide...

Small pox was eradicated (world wide) in 1980!

Have you heard of the virus HIV?

HIV is a virus, viruses are non-living because they cannot reproduce on their own, they are much smaller than even bacteria.

​​HIV

Because HIV is a virus and cannot reproduce on its own, it needs a host cell to make copies of itself.

In humans HIV attacks white blood cells. Proteins on the outside of the HIV particle attach to proteins on white blood cells. This tricks the white blood cell into letting the virus in. Once inside, HIV takes over the cell and uses it as a machine to make more HIV particles.

What does HIV do to cells?

Multiple Choice

Which conclusion about HIV infection of a host cell is best supported by the diagram?

• It takes place outside of living cells

• It relies on the host cell to reproduce

• It involves the process of meiosis

• It requires carbon dioxide