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Wk 26 Virus & Cells

Total questions: 25

Worksheet time: 13mins

Name
Class
Date
1.

What structure determines the shape of the virus?

a)

capsid

b)

nucleic acid

c)

spikes

d)

envelope

2.

True or False: The shape is important because it allows the virus to recognize and attach to the host cell.

a)

True

b)

False

3.

Viruses need a ____________ in order to make copies of themselves.

a)

bacterial cell

b)

host cell

c)

capsid

d)

vaccine

4.

Which cycle kills the host cell immediately?

a)

Lytic

b)

Lysogenic

5.

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

a)

Lytic

b)

Lysogenic

6.

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

a)

Lytic

b)

Lysogenic

7.

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

a)

Lytic

b)

Lysogenic

8.

Antibiotics ________ treat viral infections.

a)

can

b)

cannot

9.

Protein coat that surrounds the virus genetic material -

a)
capsid
b)
shell
c)
envelope
d)
covering
10.

What does dormancy mean?

a)
State of hyperactivity and excessive metabolic activity
b)
State of constant movement and high metabolic rate
c)
State of complete shutdown and cessation of metabolic activity
d)
State of inactivity or minimal metabolic activity
11.

What is happening at Step 1 of the Lytic Cycle?

a)
Attachment of the virus to the host cell
b)
Release of viral DNA into the host cell
c)
Integration of viral DNA into the host genome
d)
Replication of the viral DNA within the host cell
12.

What is happening at Step 2 of the Lytic Cycle?

a)
Replication and synthesis of viral components
b)
Assembly of new viral particles
c)
Integration of viral DNA into the host genome
d)
Release of viral components into the host cell
13.

What is happening in Step 3 of the Lytic Cycle?

a)
Host cell lysis and release of new phages
b)
Integration of viral DNA into the host genome
c)
Activation of the lytic genes
d)

Synthesis and replication of new viral material by the host

14.

What is happening in Step 4 of the Lytic Cycle?

a)
Recognition and attachment to the host cell
b)

Assembly of viral particles

c)
Integration of viral DNA into the host genome
d)
Release of phages into the environment
15.

What is happening in Step 5 of the Lytic Cycle?

a)
Integration of viral DNA into the host genome
b)
Formation of viral proteins
c)

Host cell lyses and release of newly formed viruses

d)
Inactivation of the host cell's DNA replication
16.

During the lysogenic cycle, what is happening to the viral DNA?

a)
The viral DNA is destroyed by the host cell
b)
The viral DNA remains dormant and does not replicate
c)
The viral DNA is released from the host cell
d)
Integrated into the host cell's DNA and replicates along with it
17.

Select which is true regarding viruses & cells.

a)

b)

c)

18.

Which biomolecules do cells & viruses both have?

a)

Carbohydrates & Nucleic Acids

b)

Lipids & Carbohydrates

c)

Protein & Lipids

d)

Protein & Nucleic Acids

19.

Where does viral material go during the lysogenic period?

a)
It remains in the viral capsid
b)
It is released from the host cell
c)
It is destroyed by the host cell's immune system
d)
It integrates into the host cell's DNA.
20.

During the lysogenic cycle, the viral genetic material will go into a _________ period, where it is inactive/

a)
dormant
b)
destructive
c)
replicating
d)
active
21.

What is the main difference between prokaryotes and eukaryotes?

a)

Presence of a nucleus in eukaryotes

b)

High number of chromosomes in eukaryotes

c)

High number of chromosomes in prokaryotes

d)

Presence of a nucleus in prokaryotes

22.

What is the function of the nucleus?

a)
The function of the nucleus is to produce energy for the cell
b)
The function of the nucleus is to regulate the cell's shape
c)
The function of the nucleus is to synthesize proteins
d)
The function of the nucleus is to store the cell's genetic material and coordinate cell activities.
23.

During the lysogenic cycle, host cells do not ____ right away.

a)
mutate
b)
lyse
c)
replicate
d)
divide
24.

Besides a nucleus, prokaryotes are also missing ______________.

a)
membrane-bound organelles
b)
plasma membrane
c)
cytoplasm
d)
cell wall
25.

(T/F) A virus metabolizes nutrients.

a)
True
b)
False