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A INVESTIGATION TO MEASURE THE EFFECT OF DIFFERENT ANTI-MICROBIAL COMPOUNDS ON BACTERIAL GROWTH PLAN Aim The aim of this investigation is to see whether the different anti-microbial substances effects the growth of bacteria at different dilution's. Prediction All the anti-microbial solutions will create large clearance zones at the undiluted level, but the clearance zones will decrease as the solution becomes more diluted. Variables Incubation temperatures at which the experiments are done are kept constant. The same bacterial culture is used. The same nutrient agar is used. INTRODUCTION Variables Incubation temperatures at which the experiments are done are kept constant. The same bacterial culture is used. The same nutrient agar is used. Apparatus Bacterial Culture Bunsen Burner Heat Proof Mat Tweezers 6 Sterile Petri dishes 6 x 15cm3 of molten nutrient agar Three different antiseptics (1)Dettol (2)TCP (3)Savlon Three different disinfectants (1)Dettox (2)Domestos (3)Vortex Sterile water for dilution 18 Sterile Universal Bottles 24 x 0.5cm diameter filter paper disks. Background About 200 species of bacteria are pathogenic, or disease causing, for humans. Pathogenicity varies widely among various species...

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