pepsin(5 % solution)+5 ml water | 5 ml HCl(0.5 %)+5 ml water | 5 ml pepsin(5 % solution)+5 ml NaOH(0.5 %) | 3. The tubes are allowed to incubate in a 37˚C water bath for 1 hour. The final pH of the solutions is tested and the amount of protein digestion is estimated using a scale of (+++), (++), (+), and (-) by
processes involved in digestion of carbohydrates and proteins & lipids. Results showed that the digestion of starch is only possible at room temperature (37oC) (highlighting the significance of using 37oC as the incubation temperature since this temperature simulates an environment of normal body temperature) while the digestion of protein assessed using pepsin yielded a positive outcome and correlation in PH to gastric juice, which is secreted by gastric glands. Introduction Digestion is the mechanical
Lab 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. Key Terms: Enzymes (p. 105) – Speed up chemical
LABORATORY REPORT Activity: Effect of Dietary Fiber on Transit Time and Bile Name: Hope Schallert Instructor: Dr. Weithop Date: 03.08.2015 Predictions Dietary fiber will: increase transit time Dietary fiber will increase the amount of bile acid in solution Materials and Methods Effect of Dietary Fiber on Transit Time 1. Dependent variable. number of radiopaque markers in GI tract 2. Independent variable. amount and type of fiber in meal 3. Controlled variables. calories in meal, nutrients
Digestion 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 Amylase
FROG-HUMAN LAB Cover Page (5) I.PURPOSE (5) The intention of this lab is to determine and investigate the different parts and components that make up a frog’s external body, muscles, digestive system, circulatory system, respiratory system, and the reproduction. Once we have determined these components of the frog we will then compare them to the human body and see the similarities and the differences. II.BACKGROUND (15) The digestive system is a group of organs working together to convert food
raised 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. Materials: Safety goggles String Dissecting pins Lab apron Scalpel Scissors Dissecting gloves Hand lens Ruler Preserved Pig Dissecting Tray Forceps and probe Observations Using a ruler, measure the length of the pig from the snout to the tail. Use graph to estimate the age of the fetal
example of a synthesis reaction is when hydrogen is heated and combined with oxygen to make water, which is the main constituent of the world’s lakes, rivers, and ponds as well as fluids in living organisms(n.d.). Retrieved December 16, 2017). During a lab, water, borax, glue and food coloring were all mixed together to form one product which was slime. No new elements were created and nothing was broken down. All of the elements remained the same but bonded together to create only the slime. There was
system is one of the most overlooked systems in the human body. Although most people cannot sense the system at work like they do when they breathe in air or feel their heart beat, it still continues to deliver nutrients throughout the systems. The digestion system is responsible for nourishing the human body with the energy necessary to stay healthy and getting rid of the unnecessary materials (Marieb 1989). The digestive system is composed of the mouth, pharynx, esophagus, stomach, small and large
1. 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 be