The digestion of milk fats by pancreatic lipase and the digestion of proteins by pepsin and trypsin By Jenny Lam Abstract The purpose of this project was to determine how pancreatic lipase and bile salts digest fats to fatty acids and glycerol and how pepsin and tryspin digest to polypeptides. Litmus solution (pH indicator) was used for the fats to indicate the occurrence of the digestion of fats in experiment A. Egg whites was used as the substrate for the enzymes in experiment B.
Premium Enzyme Protein
|Name: |Date: | Graded Assignment Lab Report Answer the questions below. When you are finished‚ submit this assignment to your teacher by the due date for full credit. (2 points) |Score | | | 1. List the pH levels you recorded for each test tube. Answer: |Test Tube |pH Level
Premium Digestion Stomach Hydrochloric acid
Saliva Lab Since the amylase enzyme is present in saliva‚ starch digestion begins in the mouth. Salivary amylase changes the polysaccharide starch into many disaccharide molecules of maltase (a simple sugar) which are further broken down into glucose units by maltase enzyme in the As stated above‚ saliva contains the amylase enzyme which begins the breakdown of starches. The efficiency of starch digestion by amylase can be measured by how much simple sugar it produces under
Premium Starch Enzyme Glucose
20/04/2013 Pepsin Experiment Experiment protocol to test the effect of temperature on the enzyme pepsin Lab Day: Tuesday Lab Time: 10-1pm Are you in Lab G20 (furthest from BSB Student Office) or Lab G21 (closest to BSB Student Office)?: G20 Demonstrator Name: Tamsin Peters Names of Group Members: Roanna Humphries Daniel Markus Nicholle Cooke-Hayes Dean Do Rosario Pepsin Name of Enzyme You are Investigating: Table of Contents Table of Contents ........................
Premium Digestion PH Protein
When converted to pepsin‚ the enzyme is used to break down large or undigested protein they has been absorbed by the small intestine. The digestive power of pepsin is greatest at the acidity of normal gastric juice (pH 1.5–2.5). In the intestine the gastric acids are neutralized (pH 7)‚ and pepsin is no longer effective. "Pepsin (biochemistry)." Encyclopedia Britannica Online. Encyclopedia Britannica‚ n.d. Web. 10 Dec. 2012. Research Question: Does changing the pH of pepsin affect the ability
Premium Acid PH Gastric acid
light transmission‚ this pH let the least light through. For this enzyme as the pH increases the percentage of light transmission decreases until it gets to pH 8 where it increases again to 39%. From the graph the enzyme Pepsin has 26% light transmission at pH 2. At pH 9 the Pepsin has 49% light transmission. Between pH 2 and pH 9 the percentage of light transmission increases at a steady rate. For this enzyme the optimum pH is pH 2 as it has the lowest light transmission on the graph because we didn’t
Premium Protein Enzyme
Bio 6 (Mon. Lab) 5/6/13 The Effects of Pepsin VS. Trypsin in The Digestion of Protein Introduction As food is mechanically and chemically digested through our oral cavity then passes through our pharynx and down our esophagus‚ our food then enters the stomach. The stomach‚ being the main organ for storage‚ also helps with breaking down our food‚ but in order to accomplish that our pancreas helps by excreting an inactive digestive enzyme called pepsinogen. Pepsinogen is the inactive form
Premium
LESSON PLAN TRADE DAILY MATHEMATIC Date/Day : 03-05-2012 ( Thursday ) Time : 10:40am-11:20am Class : 4cempaka No.students : 20 boys‚ 25 girls Subject : Mathematics Title/ Topic : Probability Objectives : At the end of the lesson‚ students will be able: i) To identify ad predict events as certain‚ impossible‚ likely‚ or unlikely by using spinners. ii) To record all possible outcomes of experiments. iii) To record and display results and make predictions from experiments
Premium Spins Stanford prison experiment Education
rate of reaction Aim: With the experiment of protein solution‚ in this case egg white added to different pepsin concentrations (0%‚ 0.2%‚ 0.4%‚ 0.6%‚ 0.8%‚ 1.0%) shows‚ as the egg white is a protein and the pepsin works as an enzyme‚ how a higher pepsin concentration and therefore a larger amount of enzymes effect the rate of reaction. Hypothesis: An increased concentration of pepsin speeds up the time the mixture needs to come clear. Introduction: The egg white is our protein solution
Premium Chemical reaction Chemistry Enzyme
by Pepsin The following questions refer to activity 3: Assessing Protein Digestion by Pepsin. 9. At which Ph did you see the highest activity of pepsin? How does this correlate to the location of pepsin in the body? 10. What effect did boiling have on pepsin? 11. Was there any digested BAPNA containing the pepsin or deionizer (DI) water? How can you tell? 12. What is the substrate in this experiment? What is the usual substrate for pepsin‚ and what subunits are formed with pepsin activity
Premium Digestion Enzyme PH