Using drugs to treat diseases

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Presentation transcript:

Using drugs to treat diseases

Medicines, are they all the same?

Compare and contrast

Applied to living tissue to prevent growth of microorganisms Antibiotics   Applied to living tissue to prevent growth of microorganisms Disinfectants Prevents the growth of bacteria inside living tissue – doesn’t work on viruses Antiseptics Applied to non-living materials to kill microbes and prevent their growth

Alexander Fleming http://vimeo.com/30307226

Explain in the same order you described. Penicillin is produced by a fungus Fungus likes sugar to multiple Penicillin kills bacteria Penicillin is a secondary metabolite produced under stress. Think! Why does the fungus produce a chemical that kills off bacteria when they are running out of sugar? Describe the graph (hint: start with sugar and fungal biomass lines, then describe the penicillin concentration) Explain the graph Explain in the same order you described.