Microscope components

1. The biggest potential source of contamination of the locations we tested in the Distribution of Microorganisms would have to be the floor of the lab. The reason why this is the biggest potential source of contamination is because multiple people are coming in everyday from the outside world, bringing in microorganisms from the outside into the lab. And although we sanitize the counter and all the spaces that we work around, we don’t take precautions to necessarily clean the floor, making it…

fabric or other materials such as carpet. They are mostly identifiable under a microscope, Fabrics are helpful in forensics in many ways. Fabrics are made fiber strands that are much longer than they are wide and generally round on cross section. These fibers may be from natural or synthetic sources.The main reason why fabrics are helpful is because fibers are in clothing,upholstery, carpet, rope, and building components. When a person is around any place, loose fibers become attached to a…

cellular components separate due to ascending centrifugation speeds. Different cellular components can be separated by densities to form a pellet or supernatant after each centrifugation. This process is used to separate nuclei and mitochondria. Nuclei is a very dense organelle in the center of the cell coordinating the cell’s actions: growth, metabolism, protein synthesis, reproduction. The nuclei also will pellet after the 1st low speed of the centrifugation, which can be seen under a…

Biological Chemistry at John Innes Centre, have uncovered a correlation between bacterial protein, a molecule that performs most functions within cells (the general units of life). Erica J. Washington and her team used methods such as the use of microscopes, separation of proteins based on size, and production of the 3D experimental protein by utilizing closely related proteins as models. Using these techniques, they could determine where the protein in question performed its function,…

The society at large hypothesis is another component of public corruption. This hypothesis also incorporates the slippery slope theory. When some in the public believe that officers would accept gratuities, they would offer it to them with the expectation of favors. Sometimes officers would be paid small bribes for looking the other way so that the officer can make an illegal profit. Corruption may become routine when police officer believes that other parts of the criminal justice system are…

membrane by the enzyme cellulose synthase (CesA) which forms rosette structure with 18 CesA proteins in total. Mutating any of these CesA proteins is thought to interfere with the normal production of cellulose in plant. As cellulose is an important component of cell wall and is essential for plant growth, the expression of cellulose mutant phenotype need to be switch on after the plant has grown for some time in order to study the effect of the mutation. In this experiment, the…

the body, such as the cells lymphatic system, or blood vessels. Once the biopsy is complete the tissue samples is sent to the pathology lab for further examination by a pathologist. The Pathologist will then look at the tissue sample under the microscope to grade it. The grading process depends upon the arrangement of the cells to each other. This factor shows if the cells resemble tubules, or normal breast cells known as nuclear grade. The tumor grade is the most important grade in determining…

1. Materials and suppliers • Caffeine (anhydrous), BASF, Germany, was generously donated by Dar Al Dawa Development and Investment Company. Caffeine is 1,3,7-trimethyl-3,7-dihydro-1H-purine-2,6-dione. It is white or almost white, crystalline powder or silky crystals. It is sparingly soluble in water, freely soluble in boiling water and slightly soluble in ethanol. It is used as central nervous system stimulant (British Pharmacopoeia 2009). • Methyl paraben was generously donated by Arab…

seen under the microscope. The purple hue that was acquired by the unknown microorganism indicated that the organism had a thick peptidoglycan layer meaning that the bacterium was gram positive. Looking under the microscope helped to identify the cellular arrangement of the bacterium which was sphere shaped, in clusters and thus narrowing the unknown microorganism to the Coccus species. Looking at the other two microorganisms, E. aerogenes would appear pink/red under the microscope and would be…

The diagnosis of acute lymphoid leukemia requires several tests, because the symptoms is not enough and they are similar to other disease too. It begins with complete blood count (CBC) test which provides the values of blood components. Normal children leukocyte average is 5,000-10,000 mm3, while red blood cells average is 3.8-6.0 x 1012/L, and Hemoglobin level is 95-205 g/L. The test measure also Hematocrit, and platelets. For acute lymphoid leukemia patients, the results change. The red blood…