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Edexcel A level Biology : topic 1- 4
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Question:
Investigate the antimicrobial properties of plants including aseptic techniques
Author: seremi amuneAnswer:
Grind some garlic or mint in a mortat and pestle squeeze out the juice with muslin soak small paper disk into the garlic/mint solution for 20 mins heat forceps on a bunsen burner to get rid of excess bacteria use forceps to place a garlic/mint disk into agar plate of e.coli use disk soaked in distilled water for control incubate e.coli at 25 degrees for a few days measure the diameter of each clear zone repeat to calculate mean
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