GMU 213 Bio Lab Final Review Latest Update Graded A+

GMU 213 Bio Lab Final Review Latest Update Graded A+ active site a region on an enzyme that binds to a protein or other substance during a reaction. Amylase - Enzyme in saliva that breaks the chemical bonds in starches - found in germinating seeds Amylase turns starch into what? maltose Anton von Leeuwenhoek and Robert Hooke First to use microscopes to study specimen that are smaller than the eye could see. Barfoed's reagent -Detects the presence of ONLY monosaccharide sugars -slightly acidic Benedict's reagent an alkaline solution of copper(II)sulfate used in the chemical tests for reducing sugars and non-reducing sugars. A brick-red precipitate indicates a positive result. Biuret Reagent - A biochemical test for the presence of proteins. - alkaline solution containing copper sulfate and sodium potassium tartrate. - reduces copper ions from +2 to +1 brightfield microscope A microscope that uses visible light for illumination; the specimens are viewed against a white background. Details are not visible without stains. It is used for general examination of cells and microorganisms. Carbohydrates most abundant form of organic matter on the planet. occurs in three forms: monomeric, oligomeric, and polymeric. centrifugal force particles of various masses can be separated with heavier molecules towards the bottom of the tube and lighter molecules go to the top Centrifugation process of separating out particles of different sizes and densities by spinning them at high speed in a centrifuge. Centromere Area where the chromatids of a chromosome are attached Cholesterol critical component of membrane fluidity Chromatid one of two identical "sister" parts of a duplicated chromosome Chromosomes threadlike structures made of DNA molecules that contain the genes confocal microscope Light is collected from a single plane of focus and is stored in a computer. A three dimensional image of high resolution is produced. It is typically used for all aspects of biological research, especially living cells and tissues. Cytokinesis division of the cytoplasm cytoplasmic streaming (cyclosis) a