Nutrition Chapter 5 – Flashcards
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A point of unsaturation in a fatty acid is identified by the presence of a
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Double bond
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The best way to describe a fatty acid that has one point of unsaturation is
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Monounsaturated
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The position of the first double bond from the methyl end of a fatty acid is know as
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Omega
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A fat that is less likely to become rancid can also be described as
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Saturated
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The process of hydrogenation
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Offers food products resistance to oxidative effects
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Which of the following statements about lecithin is false
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Dietary supplements are required in order to obtain the required amount
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An omega 6 fatty acid can be described as having the
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First double bond 6 carbons away from the methyl end
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Like ____ lipids are made of ______ atoms.
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Carbohydrates ; C H O
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Lipids differ in their degree of saturation or unsaturation due to their number of
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Double bonds
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Which of the following is not a feature of the bike acids
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Manufactured by the gallbladder
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All of the following compounds may be synthesized from cholesterol except
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Glucose
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Spherical complexes of emulsified fats are known as
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Micelles
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Which of the following organs is not know to secrete a lipase
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Liver
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Chylomicrons are synthesizes within the
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Intestinal cells
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What lipoprotein is largest in size
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Chylomicron
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What lipoprotein is responsible for transporting cholesterol back to the live from the periphery
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High density lipoprotein
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A high risk of heart attack correlates with high bloods levels of
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Low density lipoproteins
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A low risk of cardiovascular disease correlates with high blood levels of
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High density lipoprotein
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An important function of fat in the body is to
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Protect vital organs against shock
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Which of the following lipids is an essential nutrient
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Linoleic acid
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What is the function of lipoprotein lipase
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Hydrolyzes blood triglycerides for uptake into cells
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What is the highest total blood cholesterol concentration that falls within the desirable range
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199
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A triglyceride always contains 3
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Fatty acids
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A person wishing to increase consumption of polyunsaturated fats should choose
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Vegetable oils
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Characteristics of hydrogenated oils include all of the following except
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Products containing them become rancid sooner, contributing to a shorter shelf life
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Which of the following substances cannot be absorbed directly into the blood
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Long chain fatty acids
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Approximately how many grams of fat would be contained in an 890 kcal meal that provides 50% of the energy from carbohydrate , 20% from protein and the remainder from fat
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27
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About how much cholesterol is synthesized by the liver every day
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At least 800mg
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Bile
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Fat emulsifier released by the gallbladder
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Gastric lipase
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Hydrolyzes fat in the stomach
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Pancreatic lipase
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Works in small intestine to hydrolyze emulsified triglycerides glycerol and fatty acids
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Lingual lipase
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Secreted by salivary glands to break down fats in mouth
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Cholecystokinin
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Signals the gallbladder to release bike when fats enters the small intestines
