WorksheetsUnit 1 Viruses
Total questions: 30
Worksheet time: 5hrs 40mins
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.
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.
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 3?
a)
Capsid
b)
DNA
c)
Surface Markers
d)
Envelope
15.
What part of the virus is number 2?
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.
Some viruses have envelopes made of cell membranes. Where did they get those membranes?
a)
It is coded in their DNA.
b)
From the host cell.
c)
From the protein capsid
d)
They make it during mitosis.
19.
Is a virus considered living or non-living?
a)
Living
b)
Non-Living
c)
Neither
20.
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
21.
Why do scientists classify viruses as non-living?
a)
They DO respond to a stimulus
b)
They need a host's energy because they do not have their own energy
c)
They produce wastes
d)
They are really small
22.
Which is not a shape that viruses can come in?
a)
Round
b)
Triangle
c)
Bacteriophage
d)
Threadlike
23.
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
24.
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
25.
Which is bigger, a bacteria or a virus?
a)
Bacteria
b)
Virus
26.
Most bacteria are surrounded by a strong structure that acts like a shield for the virus called the…?
a)
Cell Wall
b)
Cell Membrane
c)
Protein Coat
27.
Where do viruses reproduce?
a)
Outside of a cell
b)
Inside of a cell
c)
They do not reproduce
28.
Which of the following helps prevent the spread of infectious diseases?
a)
Surgery
b)
Medication
c)
Vaccines
29.
True or False
The flu is caused by a virus.
The flu is caused by a virus.
a)
true
b)
false
30.
Reasons that viruses are considered to be nonliving is because
a)
They are not cellular
b)
They cannot reproduce on their own
c)
They cannot make proteins
d)
all of the above
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