NEW
Font size
WorksheetsViruses & Bacteria Review for Test
Total questions: 40
Worksheet time: 1hrs 20mins
The only goal of a virus is to
mutate.
reproduce.
kill host cells.
infect host cells.
A virus contains
DNA only.
RNA only.
either DNA or RNA.
neither DNA nor RNA.
Which of the following accurately describes viruses?
They can infect all living things except for plants.
They can infect all animals, including humans.
They can infect all living things except for bacteria.
They can infect all living things.
The first step of viral replication is
entry.
assembly.
attachment.
integration.
What is the name of the protein coat surrounding a virus?
capsule
envelope
sheath
capsid
What is an envelope (referring to viruses)?
It is a protein coat inside of the capsid.
It is a structure that some viruses have surrounding their capsids.
It is the what forms when viral DNA combines with host cell DNA.
It is the same thing as the cell membrane.
A virus that does NOT destroy its host cell, but rather "hides out" inside of the host cell, is called a(n)_______.
virulent virus
bacteriophage
temperate virus
lytic virus
A virus which kills its host cell is called a_________.
virulent virus
temperate virus
lysogenic virus
bacteriophage
Some viruses have _________ on their surfaces, which our bodies have a hard time keeping up with.
capsids
spikes
envelopes
capsules
Which of the following is TRUE of viruses?
They are made up of cells.
They can perform metabolic processes.
They can maintain homeostasis.
They can only reproduce when inside of a host cell.
New viruses released from a host cell are called
virions.
viroids.
proviruses.
prophages.
When viral DNA integrates with HUMAN host cell DNA, the result is a
provirus.
prophage.
bacteriophage.
virion.
Which of the following is NOT a common shape of bacteria?
round
spiral
cube
rod
When the growing conditions are too severe, many bacteria form _____________ until conditions improve.
antibodies
pili
endospores
prophages
Bacteria can exchange genetic information with one another through a process called
conjugation.
binary fission.
sexual reproduction.
pilus exchange.
Saprophytic bacteria obtain energy
from the sun.
by feeding on dead and decaying material.
by oxidizing inorganic compounds.
by feeding on living organisms.
Bacteria reproduce by
conjugation.
binary fission.
endospores.
colonies.
A(n)________________ must have oxygen in order to survive.
obligate anaerobe
obligate aerobe
facultative anaerobe
facultative aerobe
Some bacteria have a sticky layer surrounding the cell wall called a(n)_______________.
capsid
capsule
envelope
pilus
Staphylococcus aureus is a strain of bacteria which is a
cluster of round bacteria.
cluster of rod-shaped bacteria.
chain of round bacteria.
chain of rod-shaped bacteria.
Streptobacillus bacteria are
chains of round bacteria.
chains of rod-shaped bacteria.
clusters of round bacteria.
clusters of rod-shaped bacteria.
Which structure allows bacteria to transfer genetic information from one bacterium to another?
conjugation
pilus
capsule
envelope
Edward Jenner studied cowpox in milk maids and
infected a small child with cowpox to see if it would protect him from smallpox.
thought it was an early form of mad cow disease.
infected the milk maids with smallpox to see if they were immune.
developed the polio vaccination.
COVID-19 vaccines such as Moderna and Pfizer are of this type:
mRNA vaccines
inactivated vaccines
attenuated vaccines
antiviral vaccines
Viruses used in vaccines that do not have the ability to replicate in a host cell are called
retroviruses.
attenuated viruses.
inactivated viruses.
virions.
There are more good than bad:
viruses only
bacteria only
both viruses and bacteria
neither viruses nor bacteria
Infections caused by this/these can be treated with antibiotics:
viruses only
bacteria only
both viruses and bacteria
neither viruses nor bacteria
Escherichia coli (E. coli) is an example:
viruses only
bacteria only
both viruses and bacteria
neither viruses nor bacteria
Common source of food poisoning due to eating undercooked meat:
viruses only
bacteria only
both viruses and bacteria
neither viruses nor bacteria
Transmitted by vectors:
viruses only
bacteria only
both viruses and bacteria
neither viruses nor bacteria
All are obligate intracellular parasites:
viruses only
bacteria only
both viruses and bacteria
neither viruses nor bacteria
Obligate anaerobes are bacteria which
need oxygen in order to survive.
cannot survive in the presence of oxygen.
can live with or without oxygen.
Facultative anaerobes are bacteria which
need oxygen in order to survive.
cannot survive in the presence of oxygen.
can live with or without oxygen.
_________________vaccines are preferred because the protection is greater and lasts longer.
Inactivated
Attenuated
Antibiotic
Antiviral
You have memory white blood cells which stay in your body to "remember" the pathogen for next time.
TRUE
FALSE
Many antibiotics target cell wall production in bacteria.
TRUE
FALSE
Most vaccines are made for RNA viruses.
TRUE
FALSE
RNA viruses have high mutation rates compared to DNA viruses.
TRUE
FALSE
Special types of white blood cells produce proteins called antibiotics.
TRUE
FALSE
Which viral "life cycle" is pictured in Diagram A?
lytic cycle
lysogenic cycle
temperate cycle
host cell cycle
