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6. Which of the following is false concerning superoxide dismutaseming obligate

ID: 218317 • Letter: 6

Question

6. Which of the following is false concerning superoxide dismutaseming obligate aerobes? B. catalase C. grow better aerobically D. examples are members of the genera Mycobacterium, Bacillus, and Pseudmonas E. all of the above are true 7. Which of the following would be the most effective for sterilizing newly produced plastie Petri plates and pipette tips, while still retaining the materials in a useable state for sale to laboratories? A. Filtration B. Gamma radiation C. Autoclaving D. Hot air oven E. Nonionizing (UV) irradiation 8. Which of the following is false concerning Biosafety Levels? A. Requirements for facilities increase from BSL-1 to BSL-4 B. PPE increases from BSL-1 to BSL-4 C. BSL-4 agents have no vaccines and treatments and include Ebola and Marburg viruses. D. BSL-3 agents include Vibrio cholerae, Corymebacteriwm diphtheria,& Borrelia burdorferi. E. all of the above are true. 9. Which of the following media would you use to selectively isolate fungi? A. mannitol salt agar B. TCBS agar. C. MacConkey agar D. Modified Thayer-Martin agar. E. Sabouraad's dextrose agar 10. Which of the following is false concerning facultative anacrobes? A. superoxide dismutase B, catalase C. grow better anserobically D. examples are members of the family Enterobacteriaceae E. all of the above are true 11. Which of the following is false concerning the Calvin Benson Cycle A. utilizes both NADPH and ATP B requires the enzyme ribulose bisphosphate carboxylase. C. is responsible for the fixation of carbon dioxide. D. reduces carbons E all of the above are true

Explanation / Answer

6. D as Pseudomonas is microaerophilic while Mycobacterium and Bacillus are facultative anearobe.

7. B gamma irradiation. Autoclave and hot air oven can not be used because temperature is so high it can deform the shape. Filtration can not be used as filtration can not properly sterilize material.

8. D all the bacteria are used In BSL 2

9 E Sabouraud Dextrose Agar is used for selectively isolate fungi.

10. C. they can survive in anaerobic condition using fermentation for ATP production but if aerobic condition is present they grow better as they use aerobic respiration for production of ATP. aerobic respiration produces more ATP than fermentation.

11. D. it doesn't reduce Carbons as it fix the CO2.