Multiple Choice
Identify the
letter of the choice that best completes the statement or answers the question.
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1.
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A(n)
_____ is a virus that infects a bacterial cell. a. | plasmid | c. | decomposer | b. | endospore | d. | bacteriophage | | | | |
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2.
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Which
of the following is NOT an evolutionary adaptation in bacteria? a. | They cannot
exist under adverse conditions. | b. | They reproduce rapidly. | c. | They can utilize
substances harmful to other organisms. | d. | They have a high rate of mutation. | | |
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3.
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The
name streptococcus tells you that the bacteria are arranged as _____. a. | pairs of round
cells | c. | chains of
rods | b. | long chains of
round cells | d. | groups of
spirals | | | | |
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4.
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Which
of the bacteria is the cause of tooth decay? a. | rickettsia | c. | Treponema pallidum | b. | staphylococci | d. | streptococcus | | | | |
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5.
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Viruses are _____. a. | parasites | c. | consumers | b. | producers | d. | decomposers | | | | |
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6.
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Viruses are found in _____. a. | air | c. | water | b. | soil | d. | all of
these | | | | |
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7.
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Penicillin kills bacteria by _____. a. | consuming
them | b. | imprisoning
them | c. | causing holes to
develop in their cell walls | d. | depriving them of nutrients | | |
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8.
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Bacteria are used in _____. a. | the food industry | c. | the medical industry | b. | farming | d. | all of
these | | | | |
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9.
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A
structure in some bacteria that is resistant to adverse environmental factors is a(n)
_____. a. | coccus | c. | endospore | b. | prophage | d. | autotroph | | | | |
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10.
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Cyanobacteria are _____. a. | salt-loving archaebacteria | c. | chemosynthetic autotrophs | b. | eubacterial
heterotrophs | d. | photosynthetic
autotrophs | | | | |
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