In step 3 of today's protocol, it mentions that the incubation step with the P2 buffer should not be allowed to proceed for more than 5 minutes. a) What is the chemical composition and concentration (not mass) of each component of the P2 buffer?b) c) What is the purpose of adding the P2 buffer? What would be the major problem if this step is allowed to proceed for a long period of time?

Which of the following is an important measure that may prevent bacterial contamination in tube feeding formulas? Question 71 options: a)  Discarding opened containers of formula not used within 24 hours b)  Adding formula to the feeding container before it empties completely c)  Using the same feeding bag and tubing each day d)  Adding the full days worth of formula to the bag at the start of each day

7) One of the following antibiotics doesn’t work through the same class of molecules as the rest: a) Levofloxacin b) Rifampin c) Moxifloxacin d) Daptomycin e) Ciprofloxacin 8) In the formula [d=0.5 / n sin , d stands for: a) distance between 2 points b) distance from the slide to the objective c) Focal distance of the objective lens d) Focal distance of the ocular lens e) none of the above9) In the formula [d=0.5 / n sin ,  stands for: a) angle of reflection b) angle of refraction c) angle of incidence d) angle of inclination e) angle of perception10) In the formula [d=0.5 / n sin ,  stands for: a) angle of incidence b) speed of the illuminative source/light c) Nature of illuminative source/light d) wavelength illuminative source/light e) temperature of illuminative source/light

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