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Viruses

Total questions: 21

Worksheet time: 35mins

Name
Class
Date
1.
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
2.
A virus can be classified by its type of
a)
mitochondria
b)
chromosomes
c)
nucleic acid
d)
carbohydrates
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 (DNA or RNA)

c)

core

d)

cytoplasm

5.
Antibiotics kill viruses
a)
True
b)
False
6.

What part of a virus is the protein coat that houses the genetic material (DNA or RNA)?

a)

tail

b)

nucleus

c)

capsid

d)

glycoprotein

7.

Which viral life cycle kills its host cell by bursting out?

a)

lytic

b)

mitosis

c)

lysogenic

d)

S phase

8.
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
9.
Is a virus considered living or non-living?
a)
Living
b)
Non-Living
c)
Neither
10.
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
11.
What is a way to become immune to a disease without first having the disease?
a)
antibiotics
b)
Anti-retroviral drugs
c)
Vaccinations
d)
Exposure Therapies
12.
Which can be treated with antibiotics?
a)
Virus
b)
Bacteria
c)
Mutagen
d)
Parasite
13.

What do viruses have in common with living cells? They both...

a)

Have genetic material (nucleic acids)

b)

evolve

c)

Have genetic material (nucleic acids) and evolve

d)

have endoplasmic reticulum

14.
Which is bigger, a bacteria or a virus?
a)
Bacteria
b)
Virus
15.
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
16.

How does a virus cause a person to develop the common cold?

a)

invades the host cell to reproduce and bursts out, killing the host cell.

b)

removes energy from the host cell, but does not burst out.

c)

produces toxins in the host cell

d)

protects the host cell from bacteria

17.

Some viruses have this extra layer of protection. Made out of lipids.

a)

Glycoproteins (surface markers)

b)

Nucleic Acids

c)

Capsid

d)

Envelope

18.
Which of the following statements about pathogens is true?
a)
A pathogen describes anything that causes illness or disease
b)
Pathogens are all microscopic
c)
All pathogens are transmitted through the air from host to host
d)
All pathogens cause cells to swell and burst
19.
Which best describes the structure of a virus?
a)
a nucleic acid with a protein coat
b)
a prokaryotic cell
c)
a eukaryotic cell
d)
a unicellular organism
20.

A virus that has RNA as its genetic material is known as a ___________.

a)

CRISPR

b)

viroid

c)

bacteriophage

d)

retrovirus

21.
Why do doctors suggest people get a flu vaccine every year?
a)
Flu viruses replicate more rapidly over time
b)
Flu viruses can mutate from year to year
c)
Vaccines are absorbed by the body after a year
d)
Vaccines get stronger over time

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