Microscope

Purpose Statement: The purpose of this experiment was to determine the Gram stain of the certain slant cultures we used in class, Escherichia coli and Staphylococcus aureus, under a microscope. Since it is the most important staining procedure in microbiology, it is used to distinguish between gram-positive and gram-negative organisms. The gram-positive cells stain purple, and the gram-negative stain a pinkish color. This staining is a differential stain that allows is used to identify the…

Take the mounted section to a microscope for viewing. 8. View the slide under bright field or phase contrast of the microscope, then blue light. 9. Repeat steps 2-8 under “How to Cut and Mount Sections” for the Tradescantia species. View the Epidermal Cells of Muhlengbergia and Tradescantia Species 1. Obtain one leaf each from…

acceptance of biological knowledge. And yet some unease still remained, a sort of cloud which is not so significant as to obscure the heavens in its totality, but at the same time blocks out the sun. In Ian Hacking’s 1981 essay “Do We See Through a Microscope”, Hacking explores the sort of concerns from which my cloud may have found its genesis. Specifically, Hacking explores the nature of the reliability of scientific experimentation with increasingly advanced experimental apparatuses through…

organelles. Organelles can be known as the parts of the cell, such as: Nucleus, ER, Golgi apparatus, etc. There are there domains that exist: Bacteria, Archaea and Eukarya(Biology Department,2015) Archaea and Bacteria look very similar under the microscope and therefore it’s very hard to differentiate them. Therefore both of them are assumed to be prokaryotes. Still archaea…

Trichology is the scientific study of structure function and diseases of human hair which is also known as hair analysis. The significance of analyzing hair or fiber was acknowledged in the early phases of forensic science. In France the year of 1857 the world was introduced to one of the first extremely careful, crime-solving, science-based criminological science reports produced involving the scientific study of hair introducing the idea of hair and fiber analysis. Hair analysis has played a…

distinctly under the microscope. Most specimen thrive in aqueous environments, therefore they are translucent and when mounted on a microscope the light passes through them making it impossible to see the specimen. Equally as important as this is that the viewer is aware of what type pf bacteria is being utilized. Both of these criteria in a lab are met with the use of a staining procedure which allows for greater contrast between the mostly translucent cells and light used by the microscope.…

The significance of the title is that all objects seems huge or “larger than life” under a microscope, however, these objects that seem massive are just microscopic and are blown out of proportion. This relates to life issues because when an issue comes our way we think it is the only issue that matters. It’s the one thing that crosses our minds…

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…

isolation and miRNA preparation for PCR. During our lab lunch meeting, Dr. Ericson and Cole discussed a study he found that looked at Bartonella in histiocytomas, skin tumors made of malignant dendritic cells. In this study, they used a confocal microscope and found Bartonella in histiocytomas of dogs infected with Bartonellosis; however, they were unable to conclude whether Bartonella caused histiocytomas. This study also ran PCR on the skin samples to detect Bartonella DNA. Even though this…

The aim of the lab: The aim of the lab was to see if student could detect streptococci causing bacteria in the back of their throats and other objective was to view pathogen causing diseases under the microscope. Activity 1 – Identification of Human Streptococcal Pathogens Materials 1. Glass microscope slides 2. Bunsen burner 3. Inoculating loop 4. Sharpie pen 5. 2 bacitracin discs 6. Sterile saline tubes 7. Sterile cotton swabs 8. Tongue depressors 9. Gloves 10. 1 blood agar plate/student pair…