Chapter 5

25 July 2022
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question
Which example characterizes enterohepatic circulation?
answer
Recycling of bile from the intestine to the liver
question
In comparison to a low-density lipoprotein, a high-density lipoprotein contains ____.
answer
less lipid
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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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Approximately what percentage of the body's energy needs at rest is supplied by fat?
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60
question
Chylomicrons are synthesized within the ____.
answer
intestinal cells
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The results of blood tests that reveal a person's total cholesterol and triglycerides are called a ____.
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​lipid profile
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Which compound is missing two hydrogen atoms and has one double bond between carbons?
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Monounsaturated fatty acid
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Which statement describes a recognized relationship between dietary fat and cancer?
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Fat from milk does not increase risk for cancer.
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According to the Dietary Guidelines, what should be the maximum total fat intake as a percentage of energy intake?
answer
​35
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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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A lacto-ovo vegetarian wishing to ensure a liberal intake of linolenic acid should consume ____.
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canola oil and walnuts
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Bile is known to assist in the absorption of ____.
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fat
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In which form are most dietary lipids found?​
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Triglycerides
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What part of the gastrointestinal tract is the predominant site of dietary fat hydrolysis?
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Small intestine
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Spherical complexes of emulsified fats are known as ____.
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micelles
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How is soluble fiber in the diet thought to help lower blood cholesterol level?
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It enhances excretion of bile leading to increased cholesterol turnover
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Which lipoprotein primarily transports cholesterol in the blood?
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Low-density lipoprotein
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Lipids that are liquid at room temperature are known as ____.
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oils
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A high risk of heart attack correlates with high blood levels of ____.
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low-density lipoproteins
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What type of compound is lecithin?
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Phospholipid
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The oils found in walnuts, soybeans, flaxseed, and wheat germ represent a good source of preformed ____.​
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​linolenic acid
question
Aspirin works to reduce the symptoms of infection or pain by retarding the synthesis of​
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certain eicosanoids.
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Which statement is true of the relationship fat intake and health?
answer
​Intake of saturated fat raises blood cholesterol more than intake of cholesterol
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What tissue contains special receptors for removing low-density lipoproteins from the circulation?
answer
Liver
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What are the precursors for synthesis of the eicosanoids?​
answer
Long-chain polyunsaturated fatty acids