19 questions
What are pathogens?
any disease-causing agent
any disease-carrying agent
vaccines
any vaccine-carrying agent
Viruses are only made up of DNA?
True or False
True
False
Viruses cannot ____ on their own.
energize
feed
survive
reproduce
_____ must have a host cell to reproduce and make proteins.
a protein
a pathogen
a dead cell
a virus
What is a capsid?
a protein shell
a cell membrane
a cell wall
a cap that goes on the outer part of a virus
Lipid envelope:
a pathogen
a protein shell
a protective outer coat
Bacteriophages infect ______
bacteria
viruses
cells
the immune system
Bacteriophages _____ host cells.
eat
pierce
obtain energy
take DNA or RNA
Viruses of eukaryotes can _____ with the cell membrane or enter by ________.
match; the skin
move; the mouth
fuse; endocytosis
A ________ infection causes the host cell to burst.
lysogenic
lytic
A _______ infection does no immediate harm.
lytic
lysogenic
The mouth is the first line of defense.
True or False
True
False
What are some common entry points?
Check all the apply
the mouth
nose
none of the above
Epidemic: the ______ outbreak of an infection that affects many people.
slow
rapid
many
SARS stands for what?
Serious Angle Restoration System
Some Accidental Record System
Severe Acute Respiration Syndrome
What does a retrovirus contain?
RNA
DNA
pathogens
Vaccines are made from _________ pathogens.
stronger
weakened
lighter
heavier
A vaccine stimulates the body's own _______ response.
immune
external
internal
movement
What is the only way to control the spread of viral disease?
go to other countries to fight the disease
don't touch anyone that has the flu
vaccines
get it permanently removed from your immune system