Transcript bacteria PPT test

Test
Rules
O Each group will answer the question at the
same time by holding up the correct answer
after a count down
O Each correct answer is worth 1 point
O There are 29 questions, this is worth 29
points
The genetic material of a virus is found in its
a.
b.
c.
d.
coat.
core.
coat and core.
nucleus.
A virus’s proteins are important because they
a.
b.
c.
d.
contain genetic material.
make new virus particles.
provide energy for the virus.
help the virus attach to its host.
Which of the following statements does NOT
describe an active virus?
a.
b.
c.
d.
It attaches to the host cell.
It takes over the host cell’s functions.
It “hides” in the host cell.
It destroys the host cell.
What characteristic of viruses makes them
useful in gene therapy?
a.
b.
c.
d.
their ability to enter cells
their ability to remain inactive for a long
time
their inability to multiply in cells
their inability to take over the functions
of host cells
O Which shape describes some bacterial
O
O
O
O
cells?
a. cube-shaped
b. bullet-shaped
c. spiral
d. robotlike
Which of the following is found in the
cytoplasm of bacterial cells?
a.
b.
c.
d.
cell membrane
nucleus
genetic material
flagella
What process results in genetically different
bacteria?
a.
b.
c.
d.
binary fission
respiration
conjugation
asexual reproduction
Endospores form during
a.
b.
c.
d.
binary fission.
sunlight hours.
respiration.
harsh environmental conditions.
What important role do bacteria called
decomposers play?
a.
b.
c.
d.
They return basic chemicals to the
environment.
They slow down food spoilage.
They kill harmful bacteria.
They produce vitamins.
Which of the following is NOT a role of bacteria
that live in human bodies?
a.
b.
c.
d.
digesting food
competing for space with diseasecausing bacteria
making vitamins
fixing nitrogen
Which of the following is an example of
indirect contact that spreads some infectious
diseases?
a.
b.
c.
d.
touching an infected person
animal bites
hugging an infected person
inhaling infected drops of moisture
Which infectious disease is NOT transmitted by
an animal bite?
a.
b.
c.
d.
encephalitis
rabies
botulism
Lyme disease
The best treatment for most viral infections is
a.
b.
c.
d.
an over-the-counter medication.
a vaccine.
an antibiotic.
bed rest.
How does a vaccine work?
a.
b.
c.
d.
It activates the body’s natural defenses.
It weakens the cell walls of bacteria, causing
the cells to burst.
It treats the symptoms of an infection.
It attacks antibiotic-resistant bacteria.
Binary fission is the bacterial process of
a.
b.
c.
d.
asexual reproduction.
obtaining food.
producing energy.
forming endospores.
Viruses are considered to be nonliving because
they
a.
b.
c.
d.
cannot multiply.
use energy to grow.
are smaller than bacteria.
do not show all the characteristics of life.
The process of breaking down food to release
its energy is called
a.
b.
c.
d.
conjugation.
respiration.
binary fission.
nutrition.
Heterotrophic bacteria obtain food by
a.
b.
c.
d.
capturing the sun’s energy.
using the energy from chemicals in their
environment.
consuming autotrophs and other heterotrophs.
helping autotrophs make food.
Which virus is named for the organism that it
infects?
a.
b.
c.
d.
Ebola virus
smallpox virus
bacteriophage
Epstein-Barr virus
What directly provides energy for a virus?
a.
b.
c.
d.
food
its host
the sun
a parasite
Which phrase describes the size of virus
particles?
a.
b.
c.
d.
smaller than cells
slightly larger than cells
the same size as cells
much larger than cells
Which statement about a virus’s coat is NOT
true?
a.
b.
c.
d.
It protects the virus.
It contains protein.
It contains genetic material.
It helps the virus attach to its host.
A hidden virus
a.
b.
c.
d.
cannot attach to a host cell.
becomes part of the host cell’s genetic material.
immediately takes over the cell’s functions.
attaches to but does not enter the cell.
Which of the following structures are always
found in bacterial cells?
a.
b.
c.
d.
nuclei
ribosomes
flagella
coats
The term “antibiotic resistant” refers to bacteria that
a.
b.
c.
d.
are resistant to a vaccine.
survive in the presence of an antibiotic
are weakened and destroyed by antibiotics.
are dead or altered.
Which disease can be contracted by inhaling
infected droplets?
a.
b.
c.
d.
tetanus
rabies
flu
Lyme disease
Many bacterial diseases can be cured using
a.
b.
c.
d.
toxins.
endospores.
viruses.
antibiotics.
You have a cold, but your doctor will not give
you an antibiotic, because
a.
b.
c.
d.
antibiotics do not kill viruses.
colds are not infectious.
antibiotics make colds worse.
antibiotics provide bacteria with food.
Which of the following stimulates a person’s
body to produce chemicals that destroy
viruses or bacteria?
a.
b.
c.
d.
antibiotic
vaccine
toxin
endospore