BioChemistry > QUESTIONS & ANSWERS > Pre-Laboratory Questions (All)
Pre-Laboratory Questions
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1 What is the difference between a microbicidal drug and a microbiostatic drug? Microbicidal drugs destroy the microbe whereas microbiostatic limit the growth and reproduction. 2 What are the five ... modes of action of antimicrobial drugs? The five modes of action of antimicrobial drugs are as follows: 1. Inhibition of protein synthesis 2. Inhibition of nucleic acid synthesis 3. Inhibition of cell wall synthesis 4. Disruption of cell membrane function 5. Blockage of specific biochemical pathways, thus inhibiting metabolism 3 What are the modes of action for bacitracin and tetracycline? Tetracycline interferes with the translation (protein synthesis). Bacitracin prevents synthesis of the cell wall of gram-positive bacteria. 4 What is the name for the clear ring surrounding an antimicrobial disk if the microbe is susceptible to the drug? The name of the clearing around the disk is known as zones of inhibition. 5 If there is microbial growth all the way up to the edges of a disk, how would you record the diameter of the clear ring? This would be measured and analyzed by using susceptibility reference tables [Show More]
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