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BIOL 1441-030 Wed 11:00 – 12:50 LS 200 BIOL 1441-033 Thu 3:00 – 4:50 LS 207 BIOL 1441-037 Fri 11:00 – 12:50 LS 200 Heath Blackmon LS 459 Office Hours: 10:30-12:00 Tue and Thu heath.blackmon@mavs.uta.edu
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Macromolecules Diverse molecules that serve a variety of purposes in living organisms
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CARBOHYDRATES LIPIDS PROTEINS NUCLEIC ACIDS*
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Carbohydrates Made of Carbon, Hydrogen, Oxygen Monosaccharide – Glucose, fructose, ribose Disaccharide – Lactose, Sucrose Polysaccharide – “Many Sugars”
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Carbohydrates Polysaccharides – Starch Glucose storage – Glycogen Glucose storage – Cellulose structural
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Carbohydrates How do you break up large sugars? – Hydrolysis With use of enzymes, break down complex starches to glucose, in presence of water. Ex: Seed growth, beer production
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Lipids Made of Carbon and Hydrogen Insoluble in water Ex: Oils, fats – Found in plants and animals
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Proteins Made of tightly bound Amino Acids – Peptide bonds Structure – Primary – Secondary – Tertiary – Quaternary
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Tests to be performed today Sugar, Starch, Lipid, Protein
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Sugar Test Benedict’s Reagent – Glucose vs. Sucrose – Tests for presence of simple sugars (monosacchride) – Record results
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Starch Test Iodine Reagent (iodine potassium iodide) – Mix with potato starch in test tube – Record results
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Hydrolysis Breaking up sugars with water and acid Test samples with Benedict's test and Iodine test Record results
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Lipid Test Brown Paper test Record Results
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Protein Test Biuret reagent – protein indicator Albumin – Egg protein Record Results
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Macromolecules in Food Separation of Butter – Lipid Layer and Protein Layer of butter – Perform tests on the two layers and regular butter Tests with food – Perform the tests on Banana, Coconut, Milk, Peanut, and Potato
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Lab Manual pp 52-75 Lab Manual 52-75 Conversions and Scientific Notation Difference between a monosachride and disachride Monosachrides are simple sugars Disachrides have two simple sugars joined together Carbohydrates are long chains of sugars An example of a way that we use macromolecules: Lipids – cell membranes Proteins – enzymes (hemoglobin) Carbohydrates – energy storage Nucleic Acids – DNA
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