Lab Report - Microbes Aim: To investigate four areas of the school and to find out which of the four have the most microbes. Areas to Sample: 1. Girl’s locker room (Senior school) 2. Girl’s locker room (Elementary school) 3. Boy’s locker room (Senior school) 4. Boy’s locker room (Elementary school) Hypothesis: We predict that the boy’s locker room in the senior school will have the most microbes. First of all‚ there are more people using our locker rooms in the Senior School
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to the plasmid. We then poured the cells onto four Petri dishes that contain Luria broth. Two of the Petri dishes contained the antibiotic‚
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tape Permanent marker Distilled water Graduated cylinder 3 petri dishes Lab spoons 3 beakers Sodium chloride 3 pipettes 3 grids Procedures: Day 1 Gather and prepare 3 petri dishes. Label each grid with the different percentage of salt in each solution (0.5%‚ 1.0%‚ 1.5%). Measure and cut 1 inch of one-sided tape. Stick the one sided tape on the side of the grid onto the back of a petri dish; repeat this for the other 2 petri dishes. Use the graduated cylinder and collect three 30-ml salt
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In this lab experiment‚ we compared the amount of germinated Raphanus sativus’ in normal and frigid temperatures. My group and I predicted that more seeds in the normal temperature atmosphere would germinate‚ rather than the seeds in the frigid condition. The experiment starts with two petri dishes‚ and we filled each dish with fifty radish seeds. We made our first observations about the seeds that we see. We labeled one petri dish “Control‚” and the other was labeled “Experimental.” The experimental
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- 3 Petri dishes prepared with agar - 1 disinfected swab - 1 bottle of disinfected water - A piece of filter paper - A hole puncher - 4 test tubes - 1 measuring cylinder - 1 pipette with disposable tips - Tetracycline - Clindamycin - Benzoyl peroxide - 1 beaker of water - P. acne bacteria culture - 1 forcep - 1 digital weighing scale - 1 marker pen 1. Before starting the experiment‚ make sure you clean your work area with Chlorox and wear gloves at all
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The ten Petri dishes that exclusively did not contain an antibiotic in the bacteria culture served as the control. There were ten trials for the control and each level of IV. The experiment began by cleaning the work area and sterilizing it with 70% ethanol. Then trypticase soy agar (TSA) was poured into six groups of 60 Petri dishes (See Appendix 1). The dishes were labeled based on the antibiotic used and were left to dry and solidify at room temperature. After an hour‚ the dishes were placed in
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liquid in and out several times‚ before depositing 3 drops onto the agar solution in a petri dish. Next‚ another group member used an alcohol wipe to sterilize the spore spreader. It was necessary to ensure no contamination of the spores. He then proceeded to distribute the spores around the dish and solution. After sealing the petri dish back up‚ I labeled the dish with our group name and date. Finally‚ the petri dish was placed inside of the culture dome to properly germinate. The second
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Applied Christian Values Dealing with Addictions 1. How would you define an addiction? I would define an addiction as a behavior or activity that is psychologically and/or physiologically habit forming that a person chronically feels compelled to repeat. 2. Name three examples of common‚ socially acceptable addictions. Facebook‚ Coffee‚ Shopping. 3. Name three examples of common‚ socially unacceptable addictions. LSD‚ Cocaine‚ Heroin 4. What are three
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Soil Microbe Lab Antibiotics are chemicals produced by substances that kill or inhibit the growth of bacterial cells (Hurney et al 2013). These microbes‚ such as bacteria found in the soil‚ may seem like they would be harmful to the human body because they attack cells‚ however they are very efficient at only attacking the bacterial cells. Actinomycetes are one of the more common groups of these soil microbes known to produce antibiotics. Antibiotics work because they target specific aspects
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staining methods on microbes‚ explain the mechanisms of staining‚ namely‚ simple staining‚ and learn how to use the microscope. The experiment setting was kept as sterile as possible when conducting the experiment. The microbes under the microscope were drawn out and labelled. In conclusion‚ different staining techniques are used to determine the presence of certain exterior structures of the bacteria like the cell envelope or just to identify the basic shape and size of the microbe. In this experiment
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