32. In anaerobic respiration, the final hydrogen acceptor 2. is an inorganic compound other than oxygen 3. is an organic compound 4. may be nitrate, sulfate, or carbon dioxide a. 1, 2 and 3 are correct c. 2 and 4 are correct e. all are correct b. 1 and 3 are correct d. only 4 is correct 33. All of the following statements are true concerning F pili of E. coli EXCEPT a. male cells absorb phages onto two or three F pili . F pili are necessary for conjugation b c. fertility is lost when F pili are removed d. F pili fail to return on regrowth following removal by mechanical or cultural means e. F pili are formed again after removal 34. The homofermentative group of lactobacilli produces from sugar almost exclusively a. propionic acid b. carbon dioxide c. acetic acid d. ethanol e. lactic acid 35. The best known plasmids are 1. the sex factors 2. the Col factors 3. the resistance (R) factors 4. the penicillinase plasmids of Staphylococci a. 1, 2, and 3 b. 1 and 3 c. 2 and 4 d. 4 only e. all are correct a. lactic acid b. ethanolic c. propionic acid d. butanediol 36. The fermentation pathway that is responsible for the holes in Swiss cheese is: e. none of