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15 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Straight, rod-shaped bacteria, some of which are endospore forming, are referred to as...
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b. bacilli
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a. cocci
b. bacilli c. spirals d. vibrios |
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Beadlike chains of cocci formed after cell division along a single axis are called...
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b. streptococci
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a. diplococci
b. streptococci c. tetrads d. sarcinae |
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Bacteria that use oxygen, but only at low concentrations, are classified as...
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b. microaerophiles
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a. obligate aerobes
b. microaerophiles c. obligate anaerobes d. aerotolerant anaerobes |
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Bacteria that use organic compounds for both the source of carbon and energy are referred to as:
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d. chemoheterotrophs
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a. pbotoautotrophs
b. chemoautotrophs c. photoheterotrophs d. chemoheterotrophs |
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Microorganisms that show optimal growth at moderate temperatures (25C-40C) are called:
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c. mesophiles
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a. thermophiles
b. pyschophiles c. mesophiles d. pyschotrophs |
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A mutation that involves the deletion or insertion of 1+ bases is a:
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b. frameshift mutation
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a. point mutation
b. frameshift mutation c. transduction d. reversion |
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Treponema pallidum and Borrelia burgdorferi belong to the group of:
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d. spirochetes
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a. gram-negative aerobic rods and cocci
b. anaerobic gram-negative rods c. anaerobic gram-negative cocci d. spirochetes |
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Legionella and Neisseria are examples of:
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b. gram-negative aerobic rods and cocci
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a. facultative anaerobic gram-negative rods
b. gram-negative aerobic rods and cocci c. spirochetes d. anaerobic gram-negative cocci |
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Staphylococci and streptococci are best classified in the group of:
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a. gram-positive cocci
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a. gram-positive cocci
b. gram-negative cocci c. gram-negative aerobic rods and cocci d. anaerobic gram-negative cocci |
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Which of the following is a host-dependent bacterium?
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a. mycoplasma
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a. mycoplasma
b. ureaplasma c. rickettsia d. micrococcus |
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Bacteria whose overall shape is spherical or nearly spherical are referred to as ___.
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cocci
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Microorganisms that acquire energy from light are called ___.
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phototrophs
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Microorganisms that grow only in the presence of oxygen are called _.
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obligate aerobes
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Nonchromosomal DNA molecules in bacteria are _.
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plasmids
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The transfer of genetic material during cell-to-cell contact is a(n) _.
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conjugation
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