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Chapter 2: Viruses And Bacteria
Test Description: 7th Grade
Instructions: Answer all questions to get your test result.
1) Why are viruses like parasites?
A
They use energy to develop.
B
They multiply.
C
They destroy the cells they enter.
D
They make their own food.
2) A virus needs energy to
A
multiply
B
make food.
C
make cells.
D
grow and develop.
3) A virus’s proteins are important because they
A
provide energy for the virus.
B
make new virus particles.
C
contain the genetic material.
D
help the virus attach to its host.
4) What ability of viruses makes them useful in gene therapy?
A
their ability to enter cells
B
their ability to remain inactive for a long time
C
their ability to multiply in cells
D
their ability to take over the functions of host cells
5) Which shape describes some bacterial cells?
A
bulletlike
B
bricklike
C
rodlike
D
threadlike
6) What process results in genetically different bacteria?
A
asexual reproduction
B
binary fission
C
respiration
D
conjugation
7) Endospores form during
A
sunlight hours.
B
respiration
C
harsh environmental conditions.
D
binary fission.
8) What important role do bacteria called decomposers play?
A
They return basic chemicals to the environment.
B
They slow down food spoilage.
C
They kill harmful bacteria.
D
They produce vitamins.
9) Which of the following is NOT a role of bacteria that live in human bodies?
A
making vitamins
B
digesting food
C
preventing disease-causing bacteria from attaching to your intestines
D
preventing diabetes
10) Which of the following is an example of indirect contact that spreads some infectious diseases?
A
touching and hugging
B
eating contaminated food
C
animal bites
D
inhaling infected drops of moisture
11) Binary fission is the bacterial process of
A
asexual reproduction.
B
obtaining food.
C
producing energy.
D
forming endospores.
12) Viruses are considered to be nonliving because they
A
produce wastes.
B
cannot multiply.
C
use energy to grow.
D
are not cells.
13) The process of breaking down food to release its energy is called
A
nutrition
B
binary fission.
C
respiration
D
conjugation
14) Which virus is named for the organism that it infects?
A
Ebola virus
B
Epstein-Barr virus
C
small pox virus
D
bacteriophage
15) What provides energy for a virus?
A
a parasite
B
food
C
its host
D
the fun
16) The term “antibiotic resistant” refers to bacteria that
A
are weakened and destroyed by antibiotics.
B
are resistant to a vaccine.
C
are dead or altered.
D
survive in the presence of an antibiotic.
*select an answer for all questions
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