HNSC1210 Final Exam Questions With Complete Solutions.

Lipids correct answer: Soluble in organic solvents, not in water. Lipids in the body correct answer: Energy stores, muscle fuel, emergency reserve, padding and insulation, cell membranes, raw materials Lipids in food correct answer: Essential fatty acids, energy, transport of vitamins A/D/E/K and phytochemicals, raw materials for needed products, sensory appeal for taste and smell, stimulate appetite, satiety, texture NRC for Dietary Fat correct answer: Less than 30% energy from dietary fat, less than 10% energy from saturated fat. DRI for Dietary Fat correct answer: 20-35% energy from dietary fat. Polyunsaturated (5-10% energy from omega-6, 0.6-1.2% from omega-3). Cholesterol= minimize intake within context of healthy diet WHO for Dietary Fat correct answer: Less than 1% energy from trans fats. Low saturated fat intake reduces blood cholesterol and thus heart disease, unsaturated fat reduces blood clotting. Triglycerides correct answer: 95% of food/body fat. 3 FA and glycerol backbone. Glycerol= glucose and AA. Fatty Acid Classification correct answer: Classified by chain length and degree of saturation. Chain Length Classification of Fatty Acids correct answer: Short is less than 10, medium is 12-14, long is greater than 16. Degree of Saturation Classification of Fatty Acids correct answer: Saturated, monounsaturated, polyunsaturated. Saturated Fatty Acid correct answer: NO DOUBLE BONDS. Solid at room temperature. Ex. butter, coconut oil. Monounsaturated Fatty Acid correct answer: 1 DOUBLE BOND. Ex. canola oil, olive oil. Polyunsaturated Fatty Acid correct answer: 2+ DOUBLE BONDS. Liquid at room temperature. Ex. plant and fish oil. Phospholipids correct answer: Glycerol, 2 fatty acids, and a phosphate. Water and fat soluble. Emulsifi