A major difference between anaerobic respiration and anaerobic fermentation is .
a. in the use of oxygen
b. that the former requires breathing
c. that the latter uses organic molecules within the cell as final electron acceptors
d. that fermentation only produces alcohol
Ans: c. that the latter uses organic molecules within the cell as final electron acceptors
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In the ZW system of sex determination (as in birds), a male is _____________ while a female is ______________
A. ZZ : ZW B. ZW : ZZ C. Z0 : ZW D. Z : ZW
Which medium can be described as containing bile salts and dyes (e.g., bromothymol blue and acid fuchsin) to slow selectively the growth of most nonpathogenic gram-negative bacilli found in the gastrointestinal tract and allow Salmonella spp. and Shigella spp. to grow?
a. Thayer-Martin agar b. MacConkey agar c. Phenylethyl alcohol (PEA) d. Hektoen enteric agar
A rod-shaped bacterium is referred to as a ________
a. coccus b. spirillum c. pili d. bacillus
A yellow slant and butt in Kligler’s iron agar indicates
a. both glucose and lactose were fermented.
b. H2S was produced.
c. both glucose and lactose were fermented and H2S was produced
d. lactose only was fermented.
e. glucose only was fermented.