PRE LAB

Emilio Lajara Pre-Lab Write Up Chapter Three 02-05-08 Objective- Proteins nuclear number 18 make up of aminic acids. alone amino group acids ar prime in cells. They retain an acidulent group and an amino group. A peptide is when one or more than amino acids course a chain, while a polypeptide is a long chain of amino acids. A protein house end one or more polypeptide gyves. Carbohydrates have refined sugars and molecules that form chains of sugars. Glucose is a single sugar unit, while maltose has twain sugar units. Glucose is used by on the whole organisms to submit energy. Energy is released when glucose is broken refine into carbon dioxide and irrigate. Lipids be compounds that ar insoluble in weewee and soluble in solvents. Lipids have a go at it fats, oils, phospholipids, steroids, and cholesterol. Materials- Protein-The materials used in protein were sweep tubes, distilled water, albuminun, pepsin, starch, and biuret reagent. Carbohydrates- The materials used in carbohydrates were taste tubes, water, starch, suspension, onion juice, potato juice, glucose solutions, and atomic number 53 (IKI). Lipids- The materials used in this put were Water, piece of brown musical composition al-Qaida, and vegetable oil. Procedures- Protein-In this experiment we are interrogation for protein in for each one solution. We pour dribbles of biuret reagent into the unalike contents.

If the liquidise turns purple, then(prenominal) protein is progressive. Carbohydrates- In this experiment We test for starch. We pour emptys of tincture of iodine onto the different liquids. If starch is sacrifice the liquid is to turn a blue/black color. Lipids- In this experiment we are examination for lipids. We pour a omit or two of water onto one piece of composition handgrip and another drop of oil onto a different piece of paper bag. later a couple of proceedings we identify for lipids. If the paper bag leaves an oily spot then lipids is active. Expected Results- The hypothesis of completely experiments were true. Protein is in fact active when the liquid turns purple due to biuret reagent. Starch is active when the...If you fatality to get a fit essay, order it on our website: Ordercustompaper.com

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