A gram-negative, spiral-shaped organism is isolated from a stool sample that was hippu-rate-positive, catalase-positive, susceptible to nalidixic acid, and resistant to cephalothin. The organism can be identified as:
a. Campylobacter coli.
b. C. jejuni subsp. doylei.
c. C. jejuni subsp. jejuni.
d. C. fetus subsp. fetus.
C
C. jejuni subsp. jejuni and C. jejuni subsp. doylei are both hippurate- and catalase-positive; however, only C. jejuni subsp. jejuni is susceptible to nalidixic acid and resistant to cephalothin.
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Hydrogenated vegetable oil or trans fats are
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a. exocytosis. b. osmosis. c. cell membrane model. d. endocytosis. e. diffusion
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