Digestion Lab - 1610 Words

Digestion Lab Abstract – The purpose of this lab was to understand how different solutions played a role in the digestion protein. By looking at different variables, such as temperature, and pH we’re capable of understanding just how certain substances functioned and when they didn’t. The data for all labs are clear and concise and give a clear understanding of what solutions work best. All three labs were placed in a warm water bath set at 37’C to stimulate the reaction as if it were taking place within the human body. This gives us a more accurate reading on how they would react at that set temperature. We concluded why certain tubes changed to the color they did and further explained it. This lab focuses primarily on two crucial†¦show more content†¦Enzyme pepsin X. Gastric juices XI. Incubator (warm water bath) Outline [Gastric Digestion] 1. Label the 3 test tubes with your initials and number each 1,2, and 3. (This allows for them to be distinguished) 2. Measure out one scoop of albumin powder (rich protein) and place it into each individual tube. 3. Add 5mL of 0.4% pepsin solution to test tube 1 4. Add 5mL of 0.2% HCl to test tube 2 5. Add 5mL of gastric juices (contains both pepsin solution and HCl) to test tube 3 6. Stir all tubes slowly and carefully; mix contents well 7. Gently place the tubes in a 37’C water for an hour. 8. After the hour has passed, remove the tubes and add 2-3 drops of biuret reagent to each tube and shake. 9. Record the color change that occurs. [Part A] 1. Retrieve three more test tubes and label them 1,2, and 3 2. Add 5 mL of 5% starch solution to each tube 3. Add 5 mL of pancreatic solution to test tube 1 4. Add 5 mL of water to test tube 2 5. Add 5 mL of boiled pancreatic solution to test tube 3 6. Gently shake the tubes to mix the contents inside 7. Place the tubes in 37 degree water for 30 minutes 8. Remove the tubes and add 2-3 drops of Iodine – potassium – iodide solution to each tube. 9. Again, gently shake the tubes to mix the contents [Part B] 1. Retrieve two more test tubes and label them 1, and 2 2. Add 10 mL of litmus milk (PH Indicator) to each tube 3. Add one scoop of pancreatin powder to test tube 1 4. Add a few drops of distilled water to test tube 2 5. GentlyShow MoreRelatedLab Report Digestion2121 Words   |  9 PagesGastrin is released primarily in response to protein in the stomach, and its effects promote digestion of protein. Secretin is released in response to acid in the duodenum, and its effects will neutralize the acid. CCK is released in response to fat in the duodenum, and its effects optimize conditions for fat digestion reactions. (Sherwood, 2013) Digestion of carbohydrates begins in the mouth (salivary digestion), where the salivary glands (submandular, sublingual or parotid) will secrete an amylaseRead MoreLab 8 - Chemical and Physical Processes of Digestion2106 Words   |  9 PagesLab 8 - Chemical and Physical Processes of Digestion (p.105) Introduction: In this lab, I will study how digestion of carbohydrates, proteins, and fats occurs. I will define Key Terms that describe what will occur in the experiments; I will conduct an experiment for each Activity and provide all resulting Data as well as answer Questions from each Activity. I will then provide a short Summary for what I learned in each Activity. 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Controlled variables. calories in meal, nutrientsRead MoreActivity 4 Assessing Fat Digestion by Pancreatic Lipase and the Action of Bile1109 Words   |  5 PagesDigestion Lab Notebook Due Sunday at Midnight CST Week 6, Worth 100 points, pg. 105 Questions: 60 points Data/Results: 15 points Summarizing activities: 25 points Name: SC 245 Lab Date: Exercise 8 Chemical and Physical Processes of Digestion, pg. 105 Introduction: In this lab, I will learn how the complex digestive system breaks down substrates such as fats, proteins and carbohydrates. Activity 1: Assessing Starch Digestion by Salivary Amylase Data: Chart 1 – Salivary AmylaseRead MoreDisecting a Fetal Pig - Lab report887 Words   |  5 Pagesraised for dissection purposes, and they are relatively inexpensive. Procedure - as in the text book Purpose: The purpose of such activity is to dissect the fetal pig and observe various organs. 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Part A In this part of the lab, we used a Pancreatin solution, a digestive enzyme found in the pancreas. This digestive enzyme works to its full potential in the duodenum where the pH level ranges between 7.1-8.2. This process can take hours to react, but we only had three hours of class time so we will examine the reaction based off of that time frame. There is a mixture of enzymes that combine to make Pancreatin, but in this specific experiment, pancreatic lipase and its reactions will beRead MoreCarb Cutter Lab Report Essay728 Words   |  3 Pagesâ€Å"Studies by Mayo Clinic revealed that to decelerate the digestion of carbohydrate, you need between 4,000 to 6,000 mg of bean extract or phaseolamin. Unfortunately, many carb blockers in the market have lower than 4,000 mg of phaseolamin. In reality, a majority contain well below the recommended dosage which is a measly 500mg of white kidney bean extract. They also found that there is no sign of weight loss during the slowing down of the digestion of carbs† (Milone 2008). Students from the Biology departmentRead MoreProcess Of Breaking Down Food Into Smaller Particles3290 Words   |  14 Pages Digestion Physiology Erica Yeisley ZOOL 2021.01 Youlonda FitzGerald November 2, 2014 I. Introduction The process of breaking down food into smaller particles is called digestion, which primarily occurs within three segments of the digestive tract: the mouth, stomach, and the small intestine. In order for nutrients to be fully absorbed, they essentially need to be broken down into smaller particles in order to be transported through carrier proteins into the epithelial cells that form theRead MoreDigestive Case Study1057 Words   |  5 Pages amylase, and lipase are the digestive enzymes which break down proteins, starches, and fats and are carried to the duodenum from the stomach. 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