Microscope slide

Oral Microbiome 10: Reflection 3 One a daily basis the human mouth can come in contact with many different materials and organisms. “The human mouth is home to billions of individual microorganisms, including viruses, protozoa, fungi, archaea, and bacteria” (University of Minnesota Department of Biology Teaching and Learning, 2016, p. 21). In specific, during this lab we are looking at Streptococcus mutans (S. mutans) and Lactobacilli. In studies, it has been shown that yogurt has helped…

I have always loved to be involved with nature. When I was little, I would never come out of my tree house. It was my home away from home. There has always been a deep connection between us more then anything else I cared about. As much as I loved nature though, I never seemed to give back or take in the real meaning it beholds. Nature holds many secrets and it takes an individual to investigate to find out. If you do not stop once in awhile, you will never see that opportunity that faces you.…

alive. If the cell becomes blue, that means that it is dead. To view the cells, place a pipette of cells mixed with trypan blue at the edge of the hemocytometer and dispense the solution. The slide should already be on the hemocytometer before dispensing the liquid. Next, place the hemocytometer under a microscope…

HL-60 cells were derived from the blood cell of a patient with acute promyelocytic leukemia, which proliferates continuously. They are immortal cells, until they induce differentiation using chemical reagents such as retinoic acid. After differentiation, they are no longer immortal. Retinoic acid is derived from Vitamin A, and can induce granulocytes. We are going to test whether exposure of longer time to retinoic acid will induce greater percent of granulocytic differentiation. To test…

Initially when unknown microbe #7 was gram stained and observed under the microscope, the color appeared more pink than purple, leading to the conclusion that unknown microbe #7 was gram negative. However, when completing the KOH lysis test, the microbe didn’t become sticky and remained tacky which is how a gram positive KOH test…

development has not been demarcated to indigenous literatures of Pakistan. Pakistani literature in English has also gained access into a wider genre that is winning critical acclaim and is also becoming the subject matter of surveillance under the microscope of various literary theories (Baumgardner, 1993). The departure of British from the…

and color schemes. We feel comforted by associations that remain constant. Familiarity makes for a comfortable existence. Anything mankind can’t visualize puts itself in a category of fear and discomfort. One could even argue that the electron microscope exists solely to aestheticize what ails mankind-- influenza, cancer, and the common cold now all have mugshots. CAT scans give an aesthetic to medicine and biology that’s been lacking since the inception of these fields. However, there’s one…

Centriole (E) Their structure is a small network of protein fibers which are not surrounded by a membrane but are located in an area of the cell called the centrosome. The centriole has its appearance and structure the way it is because its arrangements must be a circular and the triplet fibers that it’s made out of will eventually create a shape that is similar to a barrel when it it is arranged. One of their main function is to contribute/help with processes that involve cellular activities.…

MATERIALS AND METHODS The first day of the independent experiment was on October 25, 2016. Mannitol Salt Agar and Phenylethanol Agar are selective media that were used to isolate M. luteus from the environmental samples. Sterile cotton swabs were used to obtain the samples from the skin, arms and dust through wiping the surface of the sample source. A handful of backyard soil was previously diluted and then 2mL of this diluted soil was transferred to a sterile test tube containing 9mL water…

Maximum contractile force production dependant on muscle and sarcomere length in isolated sartorius muscle of Rhinella marina Abstract: An isolated Sartorius muscle of Rhinella marina was repeatability stimulated with electrical impulses to induce isometric contraction. Contractile forces evoked were measured with a force transducer and the relationship between force and muscle length was investigated through the modulation of sample lengths from 80%-140% of the sample resting length. The data…