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Containing a complex medium like tryptic soy agar

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Reference no: EM132321993

  1. You leave two open Petri dishes out overnight in the lab- one containing a complex medium like tryptic soy agar (TSA), and the other a chemically defined medium like glucose salts agar (GSA). ON which do you expect more growth the next day, and why?
  2. You work in a research lab attempting to produce effective antibiotics to be used to control bacterial infections. Below are several drugs under consideration, and their mode of action. Each the following drugs, explain its impact on bacteria (i.e., why would each drug prove harmful to bacteria?)

+ Drug A embeds in the cytoplasmic membrane, creating small pores in the membrane

+ Drug B binds irreversibly to NAD+, preventing it from accepting electrons and protons

+ Drug C enzymatically cleaves the bonds between NAG and NAM of peptidoglycans.

+ Drug D blocks the lactose permease that transports lactose across the cell membrane

Which of the drugs do you predict would have the least impact on human? Why? Defend your answer.

Which of the drugs do you predict would have the least impact on bacteria? Why? Defend your answer.

Reference no: EM132321993

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