Proteins Are the basic materials of every body cell. Body cells are constantly wearing out. As a result‚ they are continuously in need of replacement Of the six nutrients group‚ only proteins can make new cells rebuild tissue. By the age of 4 years‚ body protein content reaches the adult level of about 18% of body weight. An adequate supply of proteins in the daily diet is essential for the maintenance of health. The word protein is a Greek derivation and means “of first importance”. Composition
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monosaccharide | lipids | glycerol‚ fatty acid | protein | Amino acids | nucleic acid | necleotides | CARBOHYDRATES 1. List the three main groups of carbohydrates. The three main group of carbohydrates are monosaccharides‚ disaccharides‚ and polysaccharides 2. Play the animation of dehydration synthesis. What two monosaccarides did you start with? What
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your food intake for 3 full days. Save this information. Write a 750- to 1‚050-word paper that addresses the following points about your 3-day food intake: Recorded intake of protein‚ carbohydrates‚ and lipids Which foods in your recorded daily intake provide protein? Which provide carbohydrate? Which provide lipids? Review how your recorded protein‚ carbohydrate‚ and lipid intake compares with the recommendations of the DRI. If your recorded protein-carbohydrate-fat intake was too high
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Carbohydrates H2SO4 acts as dehydrating agent forming furfural derivatives which interact with alpha-naphthol librating a violet layered compound Test | Molisch test | Objective | A general test for all carbohydrates. Monosaccharides give a rapid positive test. Disaccharides and polysaccharides react slower. | Principle involved | Dehydration of the carbohydrate by concentrated sulfuric acid to produce an aldehyde | Reagent | H2SO4 | Positive results | a purple-black layer/violet ring
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The Chemistry of Lipids Experiment #8 Objective To observe the solubility of lipids in polar and nonpolar solvents and to compare saturated and unsaturated fats in their chemical reaction with bromine. The percent fat in a food will be determined by extraction of the fat and weighing it. Introduction Lipids‚ by definition‚ are natural substances that do not mix with water but dissolve in organic solvents. There are several classes of lipids‚ including: fatty acids‚ waxes‚ triacylglycerols
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Testing for reducing sugars‚ non-reducing sugars‚ starch‚ lipids and proteins in unknown substances: Our aim: was to find out which substances from our five samples have reducing sugars present to determine what they may be for example; they could be monosacchrides or disaccharides. This was carried out by using Benedict’s test. To find out which substances from our five samples were non-reducing sugars‚ since some disaccharides are reducing sugars and this would be carried out by using Benedict’s
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LIPIDS 1. The following are essential amino acids: a) Linoleic acid and Palmitic acid b) Palmitic acid and Archidonic acid c) Linolenic acid and Linoleic acid d) Stearic acid and Linolenic acid e) Linoleic acid and Arachidonic acid 2. Arachidonic Acid: a) Is a branched fatty acid b) Contains 3 double bonds c) Is a precursor for eicosanoids d) Contains 5 double
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Food Intake and Analysis SCI/220 June 24‚ 2013 Laura Ross Food Intake and Analysis Food intake is a highly important aspect of everyday life that is often taken for granted. Many individuals eat only to fulfill their hunger‚ without consideration for the health or nutrient content contained within the foods he or she chooses. Scientist hypothesize that the human body remains in a recurrent hunger status‚ which is periodically satisfied by food intake. With this theory in mind it is easy
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What are Carbohydrates? Carbohydrates are the sugars‚ starches‚ and fibers found in fruits‚ grains‚ vegetables and milk products. Carbohydrates are sugars that break down inside the body to create glucose. Glucose is moved around the body in the blood and is the primary source of energy for the brain‚ muscles‚ and other essential cells. There are two types of carbohydrates‚ simple and complex; Simple carbohydrates refer to sugars with a simple molecular construction of one or two parts. Because
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My Daily Intake * SaDonna Bobb * 2/6/2013 * Robin Goolsby * University of Phoenix * * * * * * * * * * * * * * * * * * My Daily Intake * Over the last 3 days‚ I have recorded all the food that I have consumed in my iProfile3.0. within the 3 day span of meal entries was inputted to the journal. Meals were chronicled around breakfast‚ lunch‚ dinner‚ and snacks. Protein‚ carbohydrates‚ and lipids
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