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Unit 2- Viruses

Total questions: 35

Worksheet time: 4hrs 25mins

Name
Class
Date
1.
Viruses are...
a)
prokaryotic
b)
eukaryotic
c)
non-living
d)
endospores
2.
Needs host cell to reproduce.
a)
Virus
b)
Bacteria
c)
Fungus
d)
Protozoan
3.
How does a virus cause a person to develop the common cold?
a)
invades the host cell to reproduce
b)
removes energy from the host cell
c)
produces toxins in the host cell
d)
protects the host cell from bacteria
4.
When a virus invades a living cell, its _______
takes over the cell's functions.
a)
outer coat
b)
genetic material
c)
core
d)
cytoplasm
5.
One reason that viruses are considered to be nonliving is that they are not made of ______.
a)
protein
b)
viruses
c)
bacteria
d)
cells
6.
What do viruses have in common with living cells? They both...
a)
store genetic information
b)
have chloroplasts
c)
use glucose for cellular respiration
d)
have endoplasmic reticulum
7.
What part of the phage is the DNA?
a)
A
b)
B
c)
C
d)
D
8.
True or False
The flu is caused by a virus.
a)
true
b)
false
9.
What do viruses need to reproduce?
a)
they need genetic material
b)
They need a host cell
c)
They need  bacteria
d)
They need insulin
10.
Antibiotics kill viruses
a)
True
b)
False
11.
Viruses are cells. 
a)
True 
b)
False
12.
How could you describe the size of a virus?
a)
Smaller than bacteria
b)
Larger than a parasite
c)
About the size of a dime
d)
Smaller than a proton
13.
What part of the virus is number 1?
a)
Capsid
b)
DNA
c)
Surface Markers
d)
Envelope
14.
What part of the virus is number 2?
a)
Capsid
b)
DNA
c)
Surface Markers
d)
Envelope
15.
What part of the virus is number 3?
a)
Capsid
b)
DNA
c)
Surface Markers
d)
Envelope
16.
What part of the virus is number 4?
a)
Capsid
b)
DNA
c)
Surface Markers
d)
Envelope
17.
What is the purpose of surface marker on a virus
a)
As defense.
b)
They provide structural support.
c)
To allow the virus to move.
d)
To attach to the host cell.
18.

A vaccine triggers your body to produce _____________ which help fight infections.

a)

antibiotics

b)

antibodies

c)

antigens

19.

Viruses can affect which types of organisms? SELECT ALL

a)

plants

b)

animals

c)

bacteria

d)

bricks

20.

When a virus enters a cell and it immediately makes copies of itself this is called _______________________________.

a)

remediation

b)

replica

c)

replication

21.

As a virus changes over time, it can affect different systems within the organism. This change of the virus is called a _______________.

a)

mutation

b)

melanin

c)

metaphysics

22.

The organization in the United States that tracks diseases and vaccinations is called the

a)

CFC -- Combined Federal Campaign

b)

CDC -- Center for Disease Control and Prevention

c)

NACDP -- National Association for Control of Disease & Prevention

23.

Viruses are surrounded by a protein coat known as a

a)

Capsid

b)

Capsule

c)

Enzyme

d)

Nucleotide

24.

Viruses are found to infect only few types of cells

a)

FALSE

b)

TRUE

25.

Viruses are microscopic infectious agents that can only replicate inside a host cell

a)

FALSE

b)

TRUE

26.

Viruses are living organisms

a)

FALSE

b)

TRUE

27.

Bacteriophage is a form of bacteria

a)

FALSE

b)

TRUE

28.

Viruses contain genetic material either DNA or RNA

a)

FALSE

b)

TRUE

29.

Viruses can ONLY be transmitted thru blood transfusion

a)

FALSE

b)

TRUE

30.
What is a host?
a)
Organism that lives on the cell and causes it harm 
b)
Something that causes harm to the cell 
c)
Cell that the virus invades and takes over
31.
What is the first step of the virus reproduction cycle?
a)
The viruses genetic material (DNA) starts to take over the functions of the cell
b)
The host cell bursts open, releasing the new viruses
c)
The virus injects its genetic material into the cell
d)
A virus attaches to the surface of a host cell
32.
What is the last step in the viral reproduction cycle?
a)
A virus attaches to the surface of a host cell
b)
The proteins and genetic material start to assemble in the cell
c)
The host cell bursts open, releasing the new viruses
d)
The virus injects its genetic material into the cell
33.
Which of the following helps prevent the spread of infectious diseases?
a)
Surgery
b)
Medication
c)
Vaccines
34.
Where do viruses reproduce?
a)
Outside of a cell
b)
Inside of a cell
c)
They do not reproduce
35.
Which viral life cycle allows viral genetic material to lay dormant while the host cell reproduces?
a)
lytic
b)
mitosis
c)
lysogenic
d)
S phase

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