Medical laboratory technologists and technicians can obtain a general certification as a medical laboratory technologist or technician, respectively, or a certification in a specialty, such as cytotechnology or medical biology.
Ergosterol (ergosta-5,7,22-trien-3Î²-ol) is a sterol found in cell membranes of fungi and protozoa, serving many of the same functions that cholesterol serves in animal cells.ecause ergosterol is present in cell membranes of fungi, yet absent in those of animals, it is a useful target for antifungal drugs. Ergosterol is also present in the cell membranes of some protists, such as trypanosomes. This is the basis for the use of some antifungals against West African sleeping sickness.
Definition. Cholesterol is a waxy type of lipid, a substance that is insoluble in water, like oil or fat. Specifically, cholesterol is a type of fat that is made up of four interlocked rings of carbon called a steroid.We know steroids from watching sports, but not all steroids are responsible for building our muscles.t uses sunlight to start a cascade of chemical reactions that break down cholesterol and use the parts to make the vitamin. Without cholesterol, you could stand out in the sun all day and still not make enough vitamin D for your body. Cholesterol is also an important component of our cell membranes.