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