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