5. The autoclave raises the atmospheric pressure to _____ : a) 10 psi b) 15 psi c) 20 k joules d) 25 watts 6. In the experiment with serial dilutions, the plates which should be used for the final count for colonies should have a range of _______ CFU in order to have a reliable estimate: a) <10 b)10-15 c) 15-20 d) none of the above 7. The temperature to incubate the bacteria in the above mentioned experiment should be __: a) 22 oC b) 37 oC c) 98 oC d) 37 o

8. The time of the incubation for the serial dilution experiment should be ___ hrs.: a) 12 b) 24 c) 48 d) one week 9. The autoclave temperature must be at least ___ : a) 100 oC b) 100 oF c) 121.6 oC d) 121.6 oF 10. The use of the autoclave ensures: a) the death of all bacteria b) the death of all bacterial spores c) all of the above d) none of the above.

6) The autoclave desired Temperature to kill bacterial spores must be left for at least ____ in order to effectively kill the bacterial spores: a) 5 mins b) 10 mins c) 15 mins d) ½ hr e) 1 hr.7) The autoclave pressure must reach at least ________ in order to effectively kill the bacterial spores: a)15 PSI b) 15 Joules c) 15 KSI d) 15 Lbs e) 15 Atmospheres8) The antibiotic that inhibits the cell wall formation through the -Lactam ring is/are:a) Vancomycin b) Tetracycline c) Penicillin d) Cephalosporin e) c & d9) The sum of all chemical reactions in your body defines: a) anabolism b) metabolism c) catabolism d) Cellular Respiration e) Biosynthesis10) If in a bacterial growth medium waste product accumulates than the bacterial growth stage will be called: a) Death b) Convalescence c) Lag phase d) Log e) Stationary

4. All the following can be autoclaved EXCEPT: a) Biological material b) Glass ware c) Radioactive material d) Broth and gel media for growing bacteria5. The autoclave raises the atmospheric pressure to _____ : a) 10 psi b) 15 psi c) 20 k joules d) 25 watts6. In the experiment with serial dilutions, the plates which should be used for the final count for colonies should have a range of _______ CFU in order to have a reliable estimate: a) <10 b)10-15 c) 15-20 d) none of the above