Petri dish

Procedure 1. Find the materials. 2. Take your four postit notes and label them tap water, well water, spring water, or distilled water. 3. place the Post-it notes on a flat surface. 4. Fill each jar with one cup of one type of water. 5. Place the jars on top of the correct Post-it note. 6. Take one small piece of duct tape and place the top line of the tape at the top water line for each jar. 7. Make a table like the one shown. 8. Put however much soap you want in A soap container. 9. Bill the…

In this lab, we took four separate onion bulbs, labeled them A,B,C, and D, and put them in a beaker filled with water. We recorded the growth in number of roots and their average length for days one, two, and five. Then we put Bulbs B, C, and D in beakers with different amounts of caffeine and left Bulb A in water. We then recorded the number of roots and their average length on days two, three, and four. After that, we took and onion root form Bulbs A, B, C, and D, stained them, and looked for…

Blood Culture Contamination For the purpose of this research, Archbold Medical Center Laboratory is the place I chose to conduct my research. Blood Culture contamination is a big problem not only at Archbold, but at many hospitals. The problem is not only within the laboratory, but from outside sources also. Although contamination is a problem, it can be easily fixed. Whenever a blood culture is ordered by a physician, we can assume the patient is experiencing some type of bacterial infection…

To begin, a streak was performed on two TSA plates and a blood agar plate using the three-sector streak technique from the unknown culture tube to isolate the two unknown bacterial colonies. The plates were then incubated for 12 hours at 37 ̊C. The blood agar plate was used to create a greater contrast in color to help distinguish between bacterial colonies by size and color. Two distinct colonies could be seen growing on the blood agar plate shown in figure 1. The smaller, opaque colored…

mycelial characteristics and spores from all six isolates were done at microscopic level. 2.6. Molecular Characterizations of Entomopathogenic Fungi Cultures of Metarhizium fungus were grown in nutrient broth (Bacto, Australia) in 100 mm x 15 mm Petri dishes incubated at 25 ± 2 ºC at 150 rpm. The media having mycelia and conidia were centrifuged in microcentrifuge tubes and approximately 40 mg of fungal material was collected for each isolate. The floating foam microcentrifuge rack with the…

second Petri plate was divided in half using a marker. Two cotton sterile swab were moisten in sterile water. One of the swab was rubbed over one of the stool in the laboratory and the other swab was rubbed over the sink in the laboratory. Both swabs were used to inoculate the each of the halves of the second Petri plate respectively. The plate…

bacteria before conducting the environmental sampling lab. I knew that bacteria could be found in many different places. Also, different types of bacteria grow in different conditions. From prior experience, I remembered that to grow bacteria in a petri dish one must follow the proper technique. I chose to test how much bacteria grows on toilet handle in the bathroom. My prediction for the experiment before it was conducted was that there would be a large amount of bacterial growth on the…

with holes in the lid, with dirt and bark so that they are kept in a natural environment as possible so can react naturally during experiment.)  5x petri dish set ups labelled from 50-90% (One petri dish on the bottom will contain glycerol and have a mesh/gauze hot glued over top for the slater to walk on. On top of this will be another petri dish sealed with blutak to close off the environment.)  5x different glycerol solutions which range from 50-90% humidity (increasing by 10%)  String …

The Effect of Carbon Sources on Yeast Growth Introduction Biofilms are encountered every day through a multitude of ways whether it’s by dental plaque on our teeth, in our showers or on medical equipment. (Hall-Stoodley 2004). A biofilm is formed when single bacterial cells stick to each other (Schussler 2014). Biofilms as a group converse and work together as a complex unit which allow them to be effective in growing, surviving and reproducing (Liu et al. 2015). Moreover, yeast biofilms are an…

Table of Contents: Introduction………………………………………………………………………………………………………………………..2 Aim……………………………………………………………………………………………………………………………………….2 Background Info……………………………………………………………………………………………………………………2 Hypothesis…………………………………………………………………………………………………………………………….2 Variables……………………………………………………………………………………………………………………………….2/3 • Independent…………………………………………………………………………………………………………………………..2 • Dependent……………………………………………………………………………………………………………………………..3 •…