Microscope slide

We first conducted the catalase test. We collected a microscope slide and placed it inside of an empty petri dish, attempting to rule out contamination. We then scoped a sample of our unknown bacteria from the LB agar (Luria Broth), then added a drop of 3% H202 (Hydrogen Peroxide). We observed the slide for a reaction to take place. If a reaction was observed, we knew that the species of our unknown bacteria was able to produce…

dehydrated in xylene before being mounted with Neutral Balsam. Five transverse sections from each animal were picked out and 3 vision fields randomly selected per section. They were then photographed under 20X magnification using the Nikon TE-300 microscope. The number of neuronal cells per field was counted on the anterior horns as well as the neurons with a well defined nuclear and cell body rich in endoplasmic…

In mankind ever man and woman has a different view on nature, some think that Nature should be harnessed, controlled and then destroyed, but some think that it should be researched apron and should be sought after to help the furthering of mankind for the future, some develop a hobby involving Nature and start to care deeply about Nature as if it is there best friend, their life. Across all of mankind there are many different ways that man view Nature with. In “Zom-B Family” and the essay…

asci with eight spores. These asci arrangements in the spores can than be viewed under a microscope…

each tubes. Cover the tubes with parafilm and then mix the contents. Once it is well mix, for each tube grab a paper and see if the writing material is visible then record your result. Grab an eyedropper to obtain one drop to the slide and then add a coverslip. Use a microscope to examine the blood cell. Use the low magnification first then the high. Determine if the cell condition as crenate, normal, or lysed. It is important to wash your hands after this lab especially working with blood…

L.B. Agar Lysogeny broth (LB), a nutritionally rich medium, is primarily used for the growth of bacteria. The abbreviation is commonly taken to mean Luria broth, Lennox broth, or Luria-Bertani medium. According to its creator Giuseppe Bertani, the abbreviation LB was actually intended to stand for lysogeny broth (1). The formula of the LB medium was published in 1951 and continues to be the most common media used today (2). There are several common formulas of LB. Although they are different,…

Microbiology Case Study: Toxic Shock Syndrome I. Background AH, a 12-year-old Caucasian female, escorted by her 32-year-old mother to the local hospital’s emergency department early one morning. AH’s mother noted that within the past 3 hours AH has shown a variety of symptoms. These symptoms include: fever of 102ᵒ Fahrenheit, chills, aggressive vomiting, diarrhea, and an intense red rash of the palms and soles of her feet. AH also added that she has a sore throat, headache, muscle aches, and…

Step 1. Make Drosophila culture medium First, to prepare a culture medium, four plastic vials were obtained and labeled with numbers 1 – 4. In each of the four vials, two teaspoons of medium mixture were added. Next, using a graduated cylinder, tap water (10 mL) was added to each vial containing the culture medium. Upon addition of water, white culture medium turned blue. Additional amounts of tap water were added to each vial to provide more moisture. Next, three grains of yeast were…

Finally, the final verdict, let remember that this person was charged with the murderer of a nine years old neighbor Christine on July 30, 1992. He was accused for a crime he did not commit but at the end that does not matter, what does matter is that either you have the prove or you are guilty. Well here is the final verdict of Paul Morin. In 1997, they discovered that the inmate’s testimony was not reliable and that the court had been led to believe, also because the prisoners obtained…

frozen sections may be performed , this is a rapid diagnosis where a small sample of the specimen is chosen and rapidly frozen. This frozen tissue is then cut into very thin sections ,placed upon a microscope slide, and then stained with some special solutions. Then the slide is looked at under the microscope and a diagnosis is given. The process takes only around 10 minutes but can change the whole course of a surgery. What was thought to be an infectious process by the surgeon, may now…