Identification of Macromolecules Introduction The most common macromolecules found in living organisms are lipids‚ carbohydrates‚ proteins and nucleic acids. Briefly‚ the meaning of macromolecules is that they normally contain two or more molecules in them and their main functions are to store energy‚ information and much more. Most foods are known to be combinations of macromolecules. While some of these compounds can be detected by taste tests‚ many cannot. Scientists then use certain
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every mixture there was 5 ml of (stock solution/the three unknowns/our constant) separately mixed with 1 ml of each testing reagents. After running the experiments we can conclude that each of the three supplements do in fact contain some amounts of protein. Supplement number one tested positive for starch‚ protein‚ and sugars. This specific supplement contains the highest level of fillers as it presents us with sugar and starch
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Identification: * Testing for Macromolecules * September 20‚ 2012 – September 25‚ 2012 * SBI4U1-01 * Rebekah Alto‚ Chayene Banta‚ Taylor Denton‚ Sarosh‚ Brianna Madar * Mrs. Kolobaric Purpose: To use a set of standardized procedures to test for simple sugars and starch‚ proteins‚ and fats. Hypotheses: A.) B.) C.) Equipment: -Safety goggles -Lab apron -400 mL beaker -Utility stand with ring clamp -Hot plate
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Identification of Macromolecules Introduction The purpose of this lab is to test for the presence of macromolecules in various foods. Tests are performed to describe the basic structure of proteins‚ lipids‚ glycerides‚ and carbohydrates. We are to recognize the positives and negatives in these macromolecules. Also we are to identify the roles that proteins‚ lipids‚ minerals‚ vitamins‚ and carbohydrates play in the body’s construction and metabolism. Procedure / Results 5.1 Carbohydrate
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Macromolecules Lab Purpose: to determine a method of testing for macromolecules. Materials: Knowns: Unknown: Test Solutions: Glucose solution Unknown solution Iodine solution Gelatin solution Benedict’s solution Starch solution Biuret solution Oil Brown paper Water Procedure: 1. Create a data table. 2. Label 5 test tubes with known solutions. 3. Add 10-20 drops of each known solution to respective test tubes‚ do not mix pipets! 4. Add 3-5 drops of
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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
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reddish brown‚ dry corky rot. Heavy infection can give rise to total loss of the tubers. Light infections can occur and are difficult to detect. Media and antibiotics for isolation of Phytophthora from diseased plant tissue and soil The Oomycetes are not true fungi‚ and therefore special techniques are required for their isolation. Most species of Phytophthora grow rather slowly in vitro compared with saprophytic fungi and bacteria. In addition‚ bacterial populations need to be kept low because they
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determined to be valid when it is compared with the control solution. The higher the similarity between the results and the control solution‚ the more accurate the investigation is. Therefore‚ since the controls used in the lab are not one of the macromolecules; such as‚ carbohydrates‚ lipids or proteins‚ makes the controls ideal for this lab. In this lab‚ the controls are important because their role is to demonstrate
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proteins and nucleic acids. The most important organic molecule is Carbon. Carbon can form with up to 4 different atoms to form chains‚ rings and branches. Organic molecules also contain monomers. Monomers are the “building blocks” of macromolecules. Macromolecules are made up by chains of monomers‚ these are called polymers. Continuing with the four organic molecules are proteins. Proteins provide structure and function and have the chemical structures of Carbon‚ Hydrogen‚ Oxygen and Nitrogen.
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The Trifle Isolation Have you ever felt as though you were alone? Susan Glaspell wrote a play called Trifles. The story tells of the untimely death of Mr. Wright and the subsequent investigation. The investigation is being overseen by the county attorney‚ the sheriff and Mr. Hale who have brought their wives along to retrieve Mrs. Wright’s personal effects from the home. Everyone suspects Mrs. Wright of the death. The story has many themes but the one that stands out to me is isolation. This unfortunate
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