From Pink To Colourless

Digestion and Absorption
Digestion and Absorption
Introduction The key issue in the digestion and absorption of fats is one of solubility. Lipids are hydrophobic, and thus are poorly soluble in the aqueous environment of the digestive tract. The digestive enzyme, lipase, is water soluble and can only work at the surface of fat globules. Digestion is greatly aided by emulsification, the breaking up of fat globules into much smaller emulsion droplets. Bile salts and phospholipids are amphipathic molecules that are present in the bile. Motility in
Enzymes
Enzymes
Experiment 12. The action of lipase There are three or four liquids to be added to each test-tube, in various combinations, so look at the table at the foot of this page to get an idea of the final contents of each tube. (a) Label three test-tubes 1-3. (b) Using a graduated pipette or syringe, place 5 cm3 milk in each tube. (c) Rinse the pipette or syringe and use it to place 7 cm3 dilute (M/I0) sodium carbonate solution in each tube. This solution is to make the mixture alkaline. (d) Rinse the
Investigating the Effect of Lipase Concentration on the Breakdown of F
Investigating the Effect of Lipase Concentration on the Breakdown of F
Investigating the Effect of Lipase Concentration on the Breakdown of Fat in Milk INTRODUCTION: Enzymes are proteins which can catalyse chemical reactions without changing themselves. The enzyme lipase breaks down the fat in dairy products such as full-cream milk for people who are lactose intolerant. Lipase acts on its specific substrate, lipids produces fatty acids. If enzyme concentration increases, random collisions between the substrates and active sites of enzyme increase due to the increas
Investigating effect of temperature on the activity of lipase
Investigating effect of temperature on the activity of lipase
Investigating effect of temperature on the activity of lipase This practical gives you a chance to: investigate how lipase activity changes with temperature consider how indicators can help us to follow chemical reactions. Procedure SAFETY: Keep the phenolphthalein solution away from naked flames. Wear eye protection and quickly rinse any splashes of enzyme solution or sodium carbonate from the skin. Make sure you know what to do if a thermometer is broken. Investigation a Label a test tube
EMULSIFICATION AND DIGESTION OF LIPIDS BY BILE AND LIPASE
EMULSIFICATION AND DIGESTION OF LIPIDS BY BILE AND LIPASE
NAME : CLASS : DBT 4A DATE SUBMITTED : 14 AUG 2015 EXPERIMENT 3: EMULSIFICATION AND DIGESTION OF LIPIDS BY BILE AND LIPASE (VIRTUAL) INTRODUCTION Lipase is a type of enzyme known as a hydrolase and is responsible for catalysing the hydrolysis of triglycerides (the substrate) into fatty acids and glycerol. It is referred to as a hydrolase because the reaction that it catalyses is a hydrolysis reaction in which large molecules are broken down into smaller ones with the addition of water. Lipase is
Applications of Titration
Applications of Titration
Applications of Titration November 27, 2015 December 2, 2015 S. Raphael Introduction: The laboratory method used in this experiment is titration. Titration can be traced back to the start of volumetric analysis, in the late eighteenth century. The study of analytical chemistry began in France (Bandos, 2015). The first burette was made by Francois Antoine Henri Descroizilles, a French chemist and pharmacist (Rosenfeld, 1999). The field began to spread to other European countries. The first text