would give a positive result: a. Benedict’s test - glucose tap water oil (lipid)) starch protein b. Starch test - glucose tap water oil (lipid)) starch protein c. Sudan IV test - glucose tap water oil (lipid)) starch protein d. Biuret test - glucose tap water oil (lipid)) starch protein 7. All proteins contain carbon‚ hydrogen‚ oxygen and what other element? Nitrogen 8. When one glycerol molecule covalently
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membrane bound organelles‚ or tiny cellular structures that carry out specific functions necessary for normal cellular operation. smaller than plant cells. Cell Membrane is the outermost component of a cell. it is composed of 55% proteins‚ 25% phospholipids‚ 13% cholesterol‚ 3% carbohydrates‚ and 4% other lipids. encloses the cytoplasm and forms the boundary between material inside and materials outside it. it is semi-permeable‚ which means it regulated the flow of materials such
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and analyze proteins based on their ability to bind to a specific antibody‚ the SDS-PAGE and Western Blot was performed. SDS Polyacrylamide Gel Electrophoresis (SDS-PAGE) is a very common technique used to separate proteins based on molecular weight under the influence of an applied electrical field and then used to prepare for the Western Blot (#1 Lehninger). The support medium used is a polyacrylamide gel and‚ it also used sodium
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grouped into functional units ● tissues (muscular or nervous) and organs (skin‚ liver‚ and stomach) are a couple functional units that perform different jobs to endure the whole organism can survive ● cells require energy in order to create proteins atoms →molecules →organelles →cells →tissues →organs →organisms Eukaryotic cells have a membrane bound nucleus (plants‚ animals‚ fungi & protist) and are made up of tiny units protist are from the kingdom of protozoans (slimes & certain algaes)
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Testing for the Presence of Lipids‚ Proteins‚ and Carbohydrates in McDonald’s Menu Items Emma Heironimus‚ White 3 There are four main macromolecules; proteins‚ nucleic acids‚ lipids‚ and carbohydrates. The presence of some of these‚ such as sugar‚ fat‚ starch‚ and protein‚ can be determined using tests such as Benedict’s solution‚ Lugol’s iodine solution‚ Biuret’s reagent‚ and Sudan III. Control tests were performed to determine what a positive result would appear like. Then the tests were performed
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types of macromolecules: carbohydrates‚ proteins‚ lipids and nucleic acids. In this lab we will test four foods to see if they contain carbohydrates (sugar and/or starches)‚ proteins and lipids. We will use chemical reagents to test to determine the presence of macromolecules: Benidicts solution for sugar‚ Iodine for starch‚ Biurets reagent for protein‚ and Sudan III for lipids. Hypothesis (1 point) If we test buttermilk biscuits for starches‚ sugars‚ proteins and lipids then it will test positive
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conclusion as to the results Dr. Pauling‚ obtained. 2. Proteins have lively and complex structures. The purpose of a protein is decided by its structure; a change in the proteins activity level causes a change in some part of the proteins shape. In the experiment it is clear that the hemoglobin molecules of people with sickle cell anemia traveled at a different rate and therefore ended up at different places on the electrophoresis gel. Hemoglobin is a protein in red blood cells that carries oxygen through
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Organic compounds are very important to a body. They are help the body to do things and replenish it. The 4 organic compounds I will talk about are carbohydrates‚ lipids‚ proteins and nucleic acids. I will explain what they do and what they are made of. Carbohydrates are in foods‚ some examples are sugars and starch. The structure of a carb is ring shaped‚ it is an easy one to know. The monomer of a carb is monosaccharide‚ which means one sugar. A monosaccharide consists of glucose‚ fructose and
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(Raven‚ 2012) BIOCHEMISTRY: Protein Function–Myoglobin and Hemoglobin by A. Scheider 1 Tuesday‚ March 12‚ 13 Alpha helix polypeptide chains Heme complex with Oxygen attached to iron Heme complex without Oxygen attached to iron Beta sheet polypeptide chains Model of Hemoglobin Molecule 2 Tuesday‚ March 12‚ 13 Hemoglobin: quick facts Hemoglobin is a protein that carries Oxygen and releases Oxygen to the body via the blood circulation. Hemoglobin is made of 4 polypeptide chains
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Carbohydrates are stored in the liver and muscles in the form of this polysaccharide: B) glycogen. Mitochondria: B) contain some of the code necessary for their own duplication. Human cells have a pH range of ________. D) 7.35 - 7.45 Globular proteins: B) exhibit tertiary structure. Which of the following would best describe potential energy? D) glucose being stored in a glycogen molecule Why is water a good solvent? D) because it is strictly made of covalent bonds Which of the following
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