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HOSA NUTRITION LIPIDS EXAM QUESTIONS AND ANSWERS
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HOSA NUTRITION LIPIDS EXAM QUESTIONS AND ANSWERS
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HOSA NUTRITION LIPIDS EXAMQUESTIONS AND ANSWERS
Lipoprotein - Answer-carriers of fat in the blood
Fats - Answer-greasy substances that are not soluble in water, but are soluble in some
solvents like ether, benzene, and chloroform
Functions of fat - Answer-functioning and structure of body tissues, part of cell
membranes (cell walls), contain essential fatty acids and act as carriers for fat-soluble
vitamins, adipose tissue protects organs and bones from injury by serving as protective
padding and support, body fat also serves as insulation from cold, provide a feeling of
satiety after meals.
Why do you feel satiated after eating fats? - Answer-This is due partly to the flavor fats
give other foods and partly to their slow rate of digestion, which delays hunger.
Symptoms of fat deficiency - Answer-eczema, weight loss, delayed growth
fat-soluble vitamins - Answer-A, D, E, and K
Sources of fats - Answer-present in both animal and plant foods
Sources of fat from animal foods - Answer-higher-fat poultry cuts with skin such as the
thigh and wing; whole, low-fat, and reduced-fat milk; cream; butter; cheeses made with
cream; egg yolks (egg white contains no fat; it is almost entirely protein and water); and
fatty fish such as tuna and salmon.
Sources of fats from plant foods - Answer-cooking oils made from olives; from
sunflower, safflower, or sesame seeds; or from corn, peanuts, canola oil; or soybeans,
margarine, salad dressing; or mayonnaise (which is made from vegetable oils), nuts,
seeds, avocados, coconut, and cocoa butter.
What does eating saturated fats in animals cause - Answer-In general, the saturated fat
consumed from animal foods raises serum cholesterol, which could contribute to heart
disease.
Plant fats do not raise - Answer-cholesterol and are therefore more heart healthy.
visible fats - Answer-Fats that are purchased and used as fats, such as butter,
margarine, lard, and cooking oils.
, Hidden or invisible fats are - Answer-fats that are not immediately noticeable, those
found in other foods, such as meats, cream, whole milk, cheese, egg yolk, fried foods,
pastries, avocados, and nuts.
lipids found in food and the human body - Answer-Triglycerides, phospholipids, and
sterols
Most lipids in the body are - Answer-(95%) triglycerides. They are in body cells and
circulate in the blood.
Triglycerides - Answer-composed of three fatty acids attached to a framework of
glycerol
Glycerol - Answer-derived from a water-soluble carbohydrate
Fatty acids - Answer-organic compounds of carbon atoms to which hydrogen atoms are
attached, classified in two ways: essential or nonessential.
Essential fatty acids (EFAs) - Answer-necessary fats that humans cannot synthesize,
long-chain polyunsaturated fatty acids derived from linoleic acid and linolenic acid, and
have 2 families called omega-3 and omega-6
Why is omega 9 fatty acids not considered essential? - Answer-because the body can
manufacture a modest amount
Method of classification of fatty acids is - Answer-by their degree of saturation with
hydrogen atoms, this way described as saturated, monounsaturated, or polyunsaturated
Saturated fats - Answer-stearic acid, fatty acid, each of the fatty acid's carbon atoms
carries all the hydrogen atoms possible, more in animals than unsaturated
Examples of saturated fats - Answer-meat, poultry, egg yolks, whole milk, whole-milk
cheeses, cream, ice cream, and butter.
Although plant foods generally contain more polyunsaturated fatty acids than saturated
fatty acids what are the exceptions - Answer-chocolate, coconut, palm oil, and palm
kernel oils
How to determine saturated vs unsaturated fats - Answer-Foods containing a high
proportion of saturated fats are usually solid at room temperature.
Pectin - Answer-edible thickening agent
Mucilage - Answer-gel-forming dietary fiber
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