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For Quiz Bowl

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Term
Definition
Water   75%  
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Protein   18.5% (less variable)  
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Lipids   3% (most variable)  
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Non-protein Nitrogen   1.5% DNA, RNA, ADP, ATP, Peptides  
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Carbohydrate   1% (mainly glycogen)  
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Inorganic (Ash)   1%  
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Bound Water   Very tightly bound water, no change in amount  
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Immobilized Water   Water movement is restricted, amount decreases with rigor  
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Free Water   Water restriction, amount increases with rigor  
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High levels of bound water are associated   With high pH values and DFD (dark, firm, dry) meat  
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Immobilized water is associated with   Juiciness of the meat, this is the available water  
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Free water is associated with   Low pH value near the isoelectric point Purge and PSE (Pale, Soft, E)  
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Primary Protein Structure   The order of amino acids bonded by peptide bonds  
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Secondary Protein Structure   The alpha-helix and beta-pleated sheet structures  
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Tertiary Protein Structure   The interactions between R-groups of the amino acids  
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Quaternary Protein Structure   The interactions between different subunits of the multi-subunit protein  
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Glycine   The most abundant amino acid in the body  
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Collagen   Most abundant protein in the body (Glycine-X-Y) repeat  
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Essential Amino Acids   Phenylalanine Valine Threonine Tryptophan Isoleucine Methionine Histidine (for children) Alanine Leucine Lysine  
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Myofibrillar (Salt Soluble)   Contractile Cytoskeletal/Structural Regulatory  
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Contractile   Actin (Thin Filament) Myosin (Thick Filament)  
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Cytoskeletal/Structural   Titin Nebulin Desmin M Protein C Protein Alpha-Actinin Beta-Actinin  
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Regulatory   Tropomyosin Troponin  
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Troponin   Tropomyosin Inhibitory Calcium  
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Sarcoplasmic (Water-Soluble)   Myoglobin Hemoglobin  
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Stromal (Insoluble)   Collagen Elastin Reticulin  
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Triglycerides   3 Fatty Acids 1 Glycerol Backbone Held together by ester bonds  
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Saturated Fatty Acids   No double bonds, "hard fats"  
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Unsaturated Fatty Acids   One or more double bonds between carbons in the fatty acid chains  
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Monounsaturated Fatty Acid   1 double bond  
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Polyunsaturated Fatty Acid   More than 1 double bond  
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Omega Fatty Acids   Named denote double bonds from the ends of the fatty acid chains (Omega 3/6/etc.)  
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Phospholipids   Can be saturated or unsaturated, fatty acids contain a phosphate group  
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Palmitic Acid   16 C: 0 DB Animal Fats  
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Stearic Acid   18 C: 0 DB Animal Fats  
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Oleic Acid   18 C: 1 DB Animal Fats Most prevalent in the animal body  
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Linoleic Acid   18 C: 2 DB Grape Seed Oil  
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DNA   Deoxyribonucleic Acid  
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RNA   Ribonucleic Acid  
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ATP   Adenosine Triphosphate  
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ADP   Adenosine Diphosphate  
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Creatine Phosphate   Used to add a phosphate group to ADP turning it into ATP Also essential for muscle contraction and relaxation  
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Carbohydrates   Mainly in the form of glycogen when referring to muscle Stored in the muscle with the greatest concentration in the liver  
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B-Complex Minerals (Water Soluble)   B1: Thiamin B2: Riboflavin B3: Niacin B5: Pantothenic Acid B6: Pyridoxine B7: Biotin B9: Folic Acid B12: Cobalamin Vitamin C  
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Fat-Soluble Vitamins   A, D, E, and K  
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Minerals   Iron (about 50% is heme iron) Copper Zinc Magnesium  
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Oxygen   The most abundant element in the body  
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