Title: Hydrolysis of macromolecules Abstract: This lab was designed to teach the process of “hydrolysis”‚ a chemical reaction in which water is added to a polymer‚ breaking its bonds and forming smaller molecules. A hydrogen cation and a hydroxide anion (which once formed water) break apart and attach themselves to the ends of shorter polymers. Hydrolysis plays an important role in our lives and in the lives of every living thing on earth. Living organisms rely on digestion (hydrolysis)
Premium Starch Carbohydrate Cellulose
Important Molecules Carbohydrates‚ Proteins‚ Lipids‚ and Nucleic Acids Objectives In this lab you will learn to: 1. Perform tests to detect the presence of carbohydrates‚ lipids‚ proteins‚ and nucleic acids 2. Recognize the importance of a control in a biochemical test 3. Use biochemical tests to identify an unknown compound Introduction Organic molecules are those primarily made up of carbon‚ hydrogen and oxygen. The common organic compounds of living organisms are carbohydrates‚ proteins‚ lipids
Premium Amino acid Glucose Protein
the body is deprived of oxygen it will then begin to meet its energy needs through the slow process of fermentation. In our lab we investigated alcoholic fermentation by using yeast‚ which can flourish in an low energy environment in anaerobic conditions. In this lab our goal was to discover the rate at which yeast will ferment different sized molecules of carbohydrates. In order to perform our experiment we made use of water‚ glucose‚ sucrose‚ and starch. It was hypothesized that glucose‚ sucrose
Premium Glucose Cellular respiration Carbohydrate
Biology Laboratory Report Practical 4 Food tests Introduction The main components of food are proteins‚ fats‚ carbohydrates‚ and‚ of course‚ water. Proteins‚ lipids and carbohydrates are carriers about energy necessary for vital activity. They are a plastic material for the formation of structures of the body‚ as well as used for the synthesis of hormones and substances that transmit signals in the nervous system. Our food also includes food (plant) fibers‚ has recently seemed unnecessary ballast
Free Glucose Carbohydrate Nutrition
Protein. Essential cell biology (3rd ed.‚ p. 121). New York: Garland Science. Department of Biology. (2013). Identification of Some Macromolecules. BIOL 130L Lab Manual (pp. 14-18). University of Waterloo. Giuseppe‚ M. (2003). Carbohydrate. Nelson biology 12 (pp. 29-30). Toronto: Nelson Thomson Learning. Giuseppe‚ M. (2003). Carbohydrate . Nelson biology 12 (pp. 31-32). Toronto: Nelson Thomson Learning. Giuseppe‚ M. (2003). Protein . Nelson biology 12 (pp. 44-47). Toronto: Nelson Thomson Learning
Free Glucose Protein Amino acid
Investigating the Biomolecules found in Gelatin Abstract: For this inquiry lab‚ the research team tested the gelatin solution for the presence of biomolecules. The team searched for the presence of starch‚ glucose‚ lipids‚ and proteins through the use of indicators: Sudan III‚ Lugol’s iodine‚ Benedict’s solution‚ and Biuret’s reagent. After testing the gelatin solution in the presence of the indicators‚ the results showed that Lugol’s reacted‚ turning orange-pink (oils) and the Biuret reagent (protein)
Premium Metabolism Glucose Carbohydrate
1. Identify the functional group or molecule for each of the following. (3 points) 1. COOH -OH 2. COH -OH 3. COH -OH 1. List whether each of the following substances was positive or negative for reducing sugar‚ as indicated by the Benedict’s test. (6 points) 1. corn syrup (1 point) positive 2. table sugar (1 point) positive 3. unknown 1 (1 point) negative 4. unknown 2 (1 point) negative 5. unknown 3 (1 point) positive 6. unknown 4 (1 point)
Premium Hydrogen Carbohydrate Oxygen
Abstract: We tested five common food items to determine which macromolecules were present. We tested for the macromolecules of simple and complex carbohydrates (sugars and starch)‚ lipids‚ and proteins. The foods tested were coconut milk‚ karo syrup‚ potato chips‚ peanut butter‚ and banana baby food. We hypothesized that coconut milk would contain all four types of macromolecules‚ karo syrup would only contain simple sugars which are monosaccharides and/or disaccharides‚ potato chips would contain
Premium Carbohydrate Glucose
Lab Report 2 Introduction: The purpose of this laboratory exercise is to acquaint the investigator with common methods used to identify carbohydrates and proteins in the laboratory. Materials: 7 clean test tubes plus test tube rack dropper bottles of 1% starch‚ 1% protein‚ 1% glucose‚ and distilled water (DW)‚ slurries of honey‚ egg white‚ and saltine crackers dropper of IKI solution (starch test) dropper bottle of Benedict’s reagent (glucose test) dropper bottles of 10% NaOH and
Premium Carbohydrate Glucose DNA
Student Exploration: Identifying Nutrients Directions: In this online lab‚ you will be practicing identifying nutrients found in food. 1. Go to explorelearning.com 2. Login using the username/password your online teacher gave you at the beginning of the semester. If you forgot it‚ check your messages in blackboard. Most likely your username and password are your FirstnameLastname (no spaces). 3. Find the “Identifying Nutrients” gizmo. 4. Click on launch. Let’s get started.
Free Glucose Carbohydrate