A disk-diffusion test using Staphylococcus gave the following results: Antiseptic Zone of inhibition (mm) A 0 B 2.5 C 10 D 5 Which antiseptic was the most effective against Staphylococcus? Group of answer choices C B Can't tell A D

A scientist tested the effects of three different antibiotics on the growth of Staphylococcus aureus bacteria.These are their results:Which of the following statements is false?Neomycin is the least effective antibiotic.Neomycin is more effective than tetracycline.Tetracycline has the smallest zone of inhibition.Amoxicillin is the most effective antibiotic.I DON'T KNOWSUBMIT ANSWERLearning MaterialChoose your materialCENTURY ExplainsSlideshowAim & BackgroundVariablesEquipment IEquipment IIAutoclave & IncubatorSafetyResults TableCalculator FunctionMethod: Clean the Work SurfaceMethod: Bunsen BurnerMethod: Agar Plate LabelsMethod: ControlMethod: Disc 1Method: Disc LocationMethod: Control DiscMethod: Seal with TapeAnalysis: Zone of InhibitionAnalysis: Mean Zone MeasurementsAnalysis: Calculate Mean Cross-sectional AreaConclusionAlternative Method IAlternative Method IIQuestionQuestionQuestionQuestionQuestionQuestionQuestionQuestionQuestionQuestionQuestionQuestionSummary

A scientist tested three antibiotics on the growth of Staphylococcus aureus, a bacterium that causes infections in humans.These are their results:The scientist concluded that cloxacillin is the best antibiotic to use for all bacterial infections.Why might the scientist's conclusion be wrong?Choose a reason from the options below.Even at the lowest concentration, cloxacillin killed the most bacteria.Kanamycin has the smallest clear zone, despite being at the highest concentration.They only tested the antibiotics on Staphylococcus aureus.Cloxacillin has the largest clear zone.

A student carried out an experiment, looking at the effect of different antiseptics on the growth of the bacterium, Micrococcus luteus.Their results are shown below:The student made the following conclusions:1. Antiseptic 1 has the smallest zone of inhibition.2. Antiseptic 2 is the most effective at killing or stopping the growth of bacteria.3. Antiseptic 1 is more effective than antiseptic 3.Which of the following conclusions are correct?1 & 31 & 22 & 31, 2 & 3

In disinfectant susceptibility testing, a large zone of no growth surrounding an antimicrobial disk on a test plate would most likely be interpreted as: Group of answer choices A sensitive reaction Impossible to tell without knowing the bacterium tested Impossible to tell without knowing the concentration of the disinfectant A resistant reaction An intermediate reaction

A student carried out an experiment, looking at the effect of different antiseptics on the growth of the bacterium, Micrococcus luteus.Their results are shown below:The student made the following conclusions:1. Antiseptic 1 is the least effective at killing or stopping the growth of bacteria.2. Antiseptic 3 has the smallest zone of inhibtion.3. Antiseptic 1 is more effective than antiseptic 2.Which of the following conclusions are correct?1 & 21, 2 & 31 & 32 & 3