Bacteria will be grown in an agar broth containing .01%‚ .1%‚ .5% and 10% antibacterial soap. To fully understand the subject‚ information on everything necessary to conduct this experiment and comprehend the results was researched. Once the experiment is completed a conclusion will be able to be made as to whether or not bacteria can become resistant to antibacterial soaps The procedure for the experiment is as follows. Ecoli bacteria will be grown in agar broth with .01%‚ .1%‚ .5% and 10%
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Abstract Microorganisms are plentiful and widespread in the environment. In this lab‚ we undertook to determine the differences in the agars being used and the different colony count observed. After taking four different samples of microbes from the environment and swabbed them in two different plates one with nutrient agar and the other with sabouaud dextrose agar. After the microbes had incubated for 48 hours no results were discovered from the swabs we had taken from the environment. This lab
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teeming with microbes‚ was the source of Staphylococcus epidermis culture. I disinfected our working area‚ washed my hands‚ readied our working material‚ with aseptic technique swabbed his antecubital area with a sterile swab‚ placed directly in the nutrient broth test tube without (further) contamination‚ loosely recapped and racked above the refrigerator for incubation. The Lactobacillus acidophilus culture was similarly done. After cleaning my area and preparing the necessary material‚ I washed
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distending the cell Bacillus cereus Table 2. The observation of the colonies on the nutrient agar plates after incubated Three isolation techniques were used; streak plate‚ spread plate and pour plate and the agar plates were then inverted and incubated at 370C for one day. The distributions of colonies were then observed. Observations were recorded. Isolation Techniques Observation on the nutrient agar plates Streak plate At the first inoculum‚ all the bacterial colonies were overlapping with
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effect of common household spices/herbs such as cinnamon‚ cloves‚ mustard‚ ginger‚ and garlic‚ on the zone of inhibition in the Staphylococcus epidermis covered nutrient agar? Hypothesis: If 3 teaspoons of chopped cinnamon‚ cloves‚ mustard‚ ginger‚ and garlic steep in half a cup of boiling water for 15 hours and then placed in nutrient agar covered with Staphylococcus epidermis (gram positive) bacteria for 24 hours (in an incubator)‚ garlic will have the strongest antimicrobial effect. This is because
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pigmentation‚ colony‚ margin characteristics‚ elevation properties‚ broth characteristics and agar stroke properties. 2. To examine bacteria growth characteristics on different culture media. Introduction: Bacterial species can sometimes be identified on the basis of how they appear on or in the different media. The pigmentation‚ size and shape of bacterial colonies as they grow on and in agar plates can provide identifying signs. Observing the growth characteristics of organisms in broth
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morphology and behaviors of different cellular slime molds were analyzed under different conditions. They found that in D. disciodeum thrived equally on nutrient soil and a non-nutrient agar dishes (Bonner & Lamont‚ 2005). Similarly to the experiment preformed by Bonner and Lamont‚ we evaluated growth patterns of D. disciodeum on non-nutrient agar dishes. Another study conducted by Fisher‚ found that certain genetic factors increase the movement and development of D. disciodeum amoebae within a temperature
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INTRODUCTION Background Totipotency is the ability of a single cell to divide and produce all the differentiated cells in an organism‚ including extraembryonic tissues. Totipotent cells formed during sexual and asexual reproduction include spores and zygotes. Zygotes are the products of the fusion of two gametes. In some organisms‚ cells can dedifferentiate and regain totipotency. For example‚ a plant cutting or callus can be used to grow an entire plant. Human development begins when a sperm fertilizes
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used for their industrial production are Bacillus subtilis‚ Bacillus licheniformis‚ Bacillus amyloliquifaciens and Aspergillus niger General Lab Requirements: • Autoclave or pressure cooker • Hot Plate or Microwave oven • Nutrient Agar powder • Potato Dextrose Agar powder • Soluble starch • Weighing scales • Shaker • Spectrophotometer or colorimeter • Water bath (Temperature controlled) Materials per group of 4 students • Hand trowel or disposable spoons • Sterile pipettes (One each
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normally pathogenic‚ but pathogenic strains cause UTI’s and bladder infections (SCCC‚ 2013). Another bacteria that was observed‚ was Proteus mirabilis. This microorganism is gram-negative and rod shaped. P. mirabilis is motile and “swarms” towards nutrients such as maltose (Murphy‚ 2004). It is a mesophile‚ which lives in an optimal temperature of 37℃. P. mirabilis is able to elongate itself and secrete a polysaccharide for motility on items such as medical equipment (Murphy‚ 2004). This organism
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