Cell Biology


Cell Biology

The discovery of the antibiotic Penicillin in the 1920s made a big impact on human history. Not only did it provide a cure for bacterial infections that were once deadly, but it also led to a golden age in discovery of new antibiotics. The great benefit of these drugs is that antibiotics inhibit the growth of bacterial cells or kill them outright, and yet, on the whole, do not harm eukaryotic cells.

Answer BOTH of the following questions:

  1. Given      the following list of antibiotics and their targets, explain how each      stops bacteria without harming human cells. Base your analyses on the      differences between eukaryotic and prokaryotic cells.
  2. Considering      the targets of these antibiotics, explain why antibiotics in      general would not be useful for treating a viral infection.






Blocks cell wall synthesis



Blocks protein synthesis by binding to the 30S Unit of the   ribosome



Blocks protein synthesis by binding to the 50S Unit of the   ribosome



Inhibit folic acid synthesis



Blocks cross-linking of the peptidoglycan in the cell wall

Read this to enhance your understanding of the differences between prokaryotic and eukaryotic cells: How do antibiotics kill bacterial cells but not human cells?

See a comparison of bacterial and viral features here: Differences between bacteria and viruses.

Follow these guidelines for your paper:

  • Utilize      at least 1 credible source to support the arguments presented in the      paper. Make sure you cite appropriately within your paper, and list the      reference(s) in APA format on your Reference page. 
  • Your      paper should be 1–2 pages in length, not counting the Title page and      Reference page. 


Mobley, H. (2018). How do antibiotics kill bacterial cells but not human cells? Retrieved from: https://www.scientificamerican.com/article/how-do-antibiotics-kill-b/

Aryal, S. (2015). Differences between bacteria and viruses. Retrieved from: https://microbiologyinfo.com/differences-between-bacteria-and-viruses/

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