Petri dish

prove the microbiologist that on this planet has microbes everywhere. To understand more about ubiquity experiment, an important terms need to be explained. Agar is gelatinous- complex polysaccharide obtained from red algae. An agar plate is a Petri dish that has an agar and nutrients used to culture microorganisms. Also, agar can be expand by adding other nutrients such as glucose and other…

Animals in Research When people think about animals, they probably picture something like a mischievous kitten playing with yarn or a pack of wolves living in the wilderness. However, animals also happen to have a significant role in scientific research. Animal testing is used in contribution to making numerous products including medicine, cosmetics, and food additives. Although it is so often used, it remains a controversial subject. While scientists often argue that animal testing is…

elegans main purpose is used for human biological research, they do have differences in their make-up. The first, most noticeable difference is that they average around one millimeter in size. The worms are mostly found in lab settings and grown on petri dishes in E. coli. A second difference is that they are made up of males and hermaphrodites. Hermaphrodites can self-fertilize or mate with males but cannot they cannot fertilize each other. Sexual determination in C. elegans depends on the…

Introduction Not only is the human body colonized with a large variety of microorganisms, the environment people live in is also filled with countless bacteria and other microorganisms, which are known as environmental microbes. More importantly, since people spend the majority of their lifetime in indoor environments such as schools, houses, and hospitals, the indoor surface microbes hence play a crucial role in human health. Scientists have discovered that indoor microorganisms are associated…

CHAPTER 3 3.0 Introduction To establish the differences in consumer acceptance, the pork liver polony sample was compared against the Colcom standard polony. Experiments were conducted by manipulating the independent variable, adding pork liver in two of the polony treatments, and observing differences between the test samples and the control sample. Analyses were used to quantify and describe the differences in shelf life, sensory evaluation scores, microbiological analysis and proximate…

I stuck it in the centrifuge and turned it on. When it was done, I pipetted the solution into a petri dish which contained X-01. I set the dish under my microscope to examine the results of the solution - it was a success. I immediately called for the others and told them what I had done. We replicated my test and discovered that it worked 100% of the time. We had to produce…

The effects of caffeine on Daphnia magna Lee Phan Lab Section: P0501 1000587723 1. Materials and Methods: Preparation: Clean 3-well specimen chambers were kept in ice and a cooling chamber was then prepared to be put under the microscope, by filling it with ice and a small volume of water. This was done to ensure the temperature would remain around 15 degrees Celcius, which could keep Daphnia magna efficiently cool. Furthermore, the different concentrations were prepared in separately…

death, but life as well. Depression and substance abuse is a current— or even past—problem for many Americans. I am currently taking the Psychopathology class here at Grand Valley, so a quote Dr. Solomon said really stood out to me: “America is a petri dish of psychopathology.” This metaphor was interesting to me because I had never really thought of it in that context before. I…

different organelles inside the cell. 2. Prokaryotic cells do not have a nucleus and most internal structures that eukaryotic cells. 3. This method builds on the work of early scientists by changing the soup broth with bacteria in it to a preserved petri dish. 4. Both cells and atoms are basic building blocks. 5. This poison would not kill bacteria because bacteria do not have a nucleus. 3.2 1. The cytoskeleton provides support for the cell and helps the organelles in the cell move. 2. The…

antimicrobial activity test was performed using solid diffusion assays vapor diffusion assay and MIC after incubation period. Solid diffusion assay was performed by inoculating 100μL of the solution with E.coli and S. aureus into the respective petri dish. The clove essential oil in the filter disk was placed onto the cultured media. P. López, C. Sánchez, R. Batlle, and C. Nerín reported that the clove essential oil which contained Eugenol has antimicrobial activity against S. aureus and…