Lab report chemical and physical digestion

Frequently Asked Questions Digestion of lipids This report summarizes the actions within the gastrointestinal tract when eating different types of lipid complexes; triacylglycerols, phospholipids and ethyl esters.

Lab report chemical and physical digestion

Almost all living organisms contain four organic compounds, two of which are lipids and proteins. Lipids are made up of one molecule of glycerol and three molecules of fatty acids, resulting in a triglyceride.

Fatty acids are what make lipids non-polar and unable to dissolve in water. Proteins are inherently important to any living organism.

Lab Report: The Effect of Substrate Concentration on Enzyme Activity

They control cell process, provide support, and transport substances within a cell. They can even take the form of enzymes and hormones, regulating cells. These important cells are made up of polymers of amino acids whose functional groups are a carboxyl group and a free amino group.

Both organic compound contribute to our lives, and our health is heavily dependent on them. Knowing how they operate is to partially understand the mechanics of the human body.

These tests are run in order to see if said person has the required count of said substance. Through the use of indicators we determined the presence or absence of organic compounds. First, we obtained a test tube rack and 5 test tubes. We filled each test tube with each of the following solutions: Each test tube was filled with at least mL of one solution.


We labeled each test tube with the name of the solution that the test tube contains. Lastly, we recorded any color changes in our chart. Them, we labeled each of the test tubes with the appropriate label: Then, we filled each test tube with one designated solution.

We turned on the hot plate. Then, we got a beaker, filled it halfway with water, and placed it on the hot plate. The, we placed all of the test tubes in the beaker, using a clamp or an insulated glove, for several minutes.

We observed any color changes, and recorded our observations in the table. First, we filled a petri dish half way with tap water. Then, we put one drop of vegetable oil into the petri dish with an eyedropper. Lastly, we observed the vegetable oil in the water, and recorded our observations.

Part 2 Biuret Test for Protein: First, we obtained a test tube rack with 4 test tubes. Each test tube was labeled with the labels of the solutions which are glucose, starch, egg albumin, and distilled water.

Then, we placed mL of each solution into the assigned test tube. We gently rocked the test tubes back and forth, mixing the copper sulfate with the alkaline solution.

Part 3 Unknown solution First, we obtained a test tube rack and 9 test tubes. Our teacher provided us with three unknown solutions, A,B, and C.

11 photos of the "Digestive System Processes Chemical And Physical"

We filled 3 test tubes with the solution A, the next 3 with solution B, and the last 3 with solution C. We gently shook these test tubes, and observed any color changes.

We recorded our observations in our chart.

Lab report chemical and physical digestion

Then, we turned on the hot plate. We willed a mL beaker half way and waited for the water to turn hot. After a few minutes, we observed the color of the test tubes and recorded our observations in the table.

We took the last set of 3 test tubes A, B, and C and put a few drops of biuret reagent into it.Physical digestion is the physical process of breaking down food into smaller pieces that can easily be accessed by digestive enzymes, without making any chemical changes, whereas chemical digestion refers to the process through which the mammalian body further breaks down food substances into small.

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DC Price: FREE. . Lab Report 8 April 15th Exercise 8: Chemical and Physical Processes of Digestion Lab Report Questions Activity 1 What is the difference between the IKI assay and Benedict’s assay? IKI assay detects the presence of starch, and the Benedict assay tests for the presence of reducing sugars as well as IKI turns blue black whereas Benedict is a .

Processes of Digestion - Chemical and Physical Processes of Digestion Exercise 39A / 39 (begins page in 8th edition, page in 9th and 10th chemical and physical processes of digestion lab report questions activity 1 what is the difference between the iki assay and benedicts assay?

iki .

A physical change occurs when only physical properties change (size, shape, state of matter, etc.). The chemical makeup of the material does not change. In this lab you will practice distinguishing between physical and chemical changes, by noting a variety of changes. Lab Report On Chemical Reactions Words | 11 Pages. is putting the chemical reactions to work! We are going to be using different substances and combining them together to record and observe the different reactions that will be produced as we perform the steps. Free Essays on Amylase Enzyme Lab Report Abstract for students. Use our papers to help you with yours. Amylase Enzyme Lab Report Abstract Free Essays. Home; Mla lab report; Antacid lab report; Do you need help with writing an amylase lab report Name: IENG KEVIN Exercise 8: Chemical and Physical Processes of Digestion.

Testing for Lipids, Proteins and Carbohydrates. Elementary School (K-5) Middle School () High School () such as starches DO NOT react positive with the Benedict's test unless they are broken down through heating or digestion (try chewing crackers and then doing the test).

enzymes, in a lab outlined in the following lesson plan. PhysioEx ™ Laboratory Simulations in Physiology is an easy-to-use laboratory simulation software and lab manual that consists of 12 exercises containing 66 physiology lab activities that can be used to supplement or substitute wet labs.

PhysioEx allows you to repeat labs as often as you like, perform experiments without harming live animals, and conduct experiments that are difficult to.

Lab 4: Chemical and Physical Changes