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Viruses and Bacteria

Total questions: 28

Worksheet time: 55mins

Name
Class
Date
1.

Are viruses a living or nonliving organism?

a)

living

b)

nonliving

2.

Viruses require a __________ cell in which to

reproduce.

a)

living

b)

dead

c)

new

d)

old

3.

The __________is a protein coat that helps

protect the virus.

a)

capsid

b)

membrane

c)

capsule

4.

Viruses use _____________ proteins to attach to

host cells.

a)

surface

b)

end

c)

internal

5.

The two ways which viruses can infect a host cell

are the _______________ cycle and the ____________cycle.

a)

fluid and nonfluid

b)

lytic and lysogenic

6.

What is disease caused by a virus?

a)

Tuberculosis

b)

Glanders

c)

Flu

d)

Strepthroat

7.

Viruses do not respond to __________________.

a)

vaccines

b)

antibiotics

8.

Bacteria are all classified as prokaryotes, which

mean they do not have ______________.

a)

Cell Wall

b)

Cell Membrane

c)

Nucleus

9.

All bacteria are unicellular, which means they

are composed of how many cells. __________

a)

1

b)

2

c)

3

d)

many

10.

Cocci are___________shaped,

a)

rod

b)

sphere/round

c)

spiral

11.

Bacilli are __________shaped

a)

rod

b)

sphere/round

c)

spiral

12.

Spirilli are ______________ shaped.

a)

round/sphere

b)

spiral

c)

rod

13.

Bacteria reproduce through _________ fission

a)

singular

b)

binary

c)

quaternary

14.
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
15.
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 
16.
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
17.
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
18.
Antibiotics kill viruses
a)
True
b)
False
19.
Which can be treated with antibiotics?
a)
Virus
b)
Bacteria
c)
Mutagen
d)
Parasite
20.
Viruses are larger than bacteria
a)
True
b)
False
21.
When a virus invades a living cell, its _______
takes over the cell's functions.
a)
outer coat
b)
genetic material
c)
core
d)
cytoplasm
22.
Viruses are cells. 
a)
True 
b)
False
23.
All bacteria are 
a)
eukaryotic.
b)
prokaryotic.
c)
eukaryotic and multicellular.
d)
prokaryotic and unicellular.
24.
Disease-causing organisms are known as
a)
cocci.
b)
bacilli.
c)
pathogens.
d)
archaea.
25.
What is the flagellum used for in a bacterium?
a)
movement
b)
capturing food
c)
attacking predators
d)
to make the bacterium appear larger than it really is
26.

Bacteria is added to cheese

a)

true

b)

false

27.

Scientists have created a bacterium to clean up wastes

a)

true

b)

false

28.

Bacteria that can survive in extreme environments are called

a)

pathogens

b)

eubacteria

c)

archea bacteria

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