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Viruses

Total questions: 20

Worksheet time: 19mins

Name
Class
Date
1.
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
2.
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
3.
A(n) _____ is a virus that enters a bacterial cell.
a)
endospore
b)
decomposer
c)
plasmid
d)
bacteriophage
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.
Antibiotics kill viruses
a)
True
b)
False
6.
Viruses are cells. 
a)
True 
b)
False
7.
Which of the following occurs after a virus attaches to a host cell in the viral reproduction process?
a)
The host cell dies
b)
The virus dies
c)
The virus inserts its genetic information into the host cell
d)
copies of the virus are immediately released from the host
8.

Which viral cycle takes the longest to show symptoms?

a)

Lysogenic

b)

Lytic

9.

What is the first step to both viral cycles?

a)

The virus attaches to a host

b)

the virus injects genetic material

c)

the host gets sick

d)

the cell is destroyed

10.

When the viral DNA becomes active in the lysogenic cycle, which life cycle does it enter?

a)

lytic

b)

lysogenic

c)

cell cycle

d)

DNA replication

11.
What is shown here?
a)
Lysogenic Cycle
b)
Lytic Cycle
c)
Binary Fission
d)
Conjugation
12.
What process is this?
a)
phagocytosis
b)
lytic cycle
c)
lysogenic cycle
d)
formation of antibodies
13.

What happens in the lysogenic cycle?

a)

Virus goes in and leaves the host cell

b)

Virus quickly kills the host cell

c)

Virus injects the nucleic acid into the host cell, and the nucleic acid integrates into the host cell DNA and stays dormant for a long time

d)

Bacteria injects DNA into a host cell

14.

Viruses are considered

a)

living things

b)

non-living things

c)

partially living things

15.

Which cycle of a virus is most destructive to the host?

a)

lytic cycle

b)

lysogenic cycle

16.

This image represents part of the

a)

lytic cycle

b)

lysogenic cycle

17.

Choose the correct order of lytic cycle steps

a)

attachment, entry, assembly, replication, release

b)

attachment, entry, replication, assembly, release

c)

attachment, entry, assembly, release, replication

d)

attachment, release, assembly, replication, entry

18.

A virus in the lysogenic state can be forced into the lytic cycle due to certain stressors

a)

True

b)

False

19.

viruses are non-living because

a)

they cannot reproduce on their own

b)

they do not evolve

c)

they have no DNA

d)

they cannot be destroyed

20.
What is the 1st step of virus infection?
a)
Entry
b)
Attachment
c)
Replication
d)
Assembly