Quiz #5 Lipids

Jeff wishes to switch from using corn oil to using one that is a good source of omega-3 fats. Which of the following should be recommended? A.) Liquefied lard B.) Corn oil C.) Safflower oil D.) Canola oil

D.) Canola oil

Lipids differ in their degree of saturation or unsaturation due to their number of A.) Amino acids B.) Saccharide units C) Peptide linkage D.) Double bonds

D.) Double bonds

Which of the following is NOT a feature of dairy products consumption? A.) Yogurt is known to lower blood cholesterol B.) Fermented milk products raise the bacterial population in the colon C.) Fat-free milk contains no cholesterol D.) Fat-free milk is lower in kcalories but also lower in protein and calcium than whole milk

D.) Fat-free milk is lower in kcalories but also lower in protein and calcium than whole milk

Which of the following describes a feature of cis-fatty acids and trans-fatty acids? A.) The conversion of cis-fatty acids to trans-fatty acids is inhibited by the presence of antioxidants B.) Hydrogenation converts trans-fatty acids to cis-fatty acids C.) In nature, most double bonds are trans D.) In the body, trans-fatty acids are metabolized more like saturated fats than like unsaturated fats

D.) In the body, trans-fatty acids are metabolized more like saturated fats than like unsaturated fats

Which of the following is NOT a feature of the artificial fat replacer olestra? A.) It can be used in the frying of foods B.) It lowers absorption of vitamins A and K from foods C.) Its chemical structure is similar to a triglyceride D.) It leads to constipation in some individuals

D.) It leads to constipation in some individuals

The oils found in walnuts, soybeans, flaxseed, and wheat germ represent a good source of preformed A.) Eicosanoids B.) Eicosapentaenoic acid C.) Docosahexaenoic acid D.) Linolenic acid

D.) Linolenic acid

The results of blood tests that reveal a person's total cholesterol and triglycerides are called a A.) Degenerative disease assessment B.) Personal lipids count C.) Circulating fat count D.) Lipid profile

D.) Lipid profile

What type of fatty acid is found in high amounts in olive oil? A.) Polyunsaturated B.) Partially hydrogenated C.) Saturated D.) Monounsaturated

D.) Monounsaturated

Which of the following describes a fatty acid that has NO double bonds? A.) Polyunsaturated B.) Monounsaturated C.) Hydrogenated D.) Saturated

D.) Saturated

A person is consuming 1600 kcal/day about how many grams of fat should they consume per day? A.) 27-47 grams B.) 40-70 grams C.) 36-62 grams D.) 44-78 grams

C.) 36-62 grams

What tissue contains special receptors for removing low-density lipoproteins from the circulation? A.) Skeletal Muscle B.) Arterial walls C.) Liver D.) Adipose

C.) Liver

Which of the following structural features of fatty acids determines their susceptibility to spoilage by oxygen? A.) Size of adjacent fatty acids on the triglyceride molecule B.) Chain length C.) Number of double bonds D.) Position of first saturated bond

C.) Number of double bonds

Characteristics of hydrogenated oils include all of the following EXCEPT A.) They lower HDL and raise LDL cholesterol in the body B.) Some of their fatty acids change shape from cis to trans C.) Products containing them become rancid sooner, contributing to a shorter shelf life D.) They are stored in adipose tissue

C.) Products containing them become rancid sooner, contributing to a shorter shelf life

A lacto-ovo vegetarian wishing to ensure a liberal intake of linolenic acid should consume A.) Canola oil and walnuts. B.) Eggs and milk. C.) Safflower oil margarine. D.) Corn oil and sunflower oil.

A.) Canola oil and walnuts.

Which of the following is a characteristic of fish consumption? A.) Fatty fish contain the highest amounts of omega-3 fatty acids B.) The minimum intake to gain any benefit is 3 servings per week C.) Even fried fish from fast-food restaurants provide a favorable balance of omega-6 and omega-3 fats D.) Fish is a good source of iron

A.) Fatty fish contain the highest amounts of omega-3 fatty acids

Bob has just come back from the doctor, where he was subjected to a blood lipid profile analysis. The doctor recommended he make dietary changes because the cholesterol results put him at increased risk for cardiovascular disease. Which of the following results is consistent with the diagnosis? A.) Low HDL and high LDL B.) Low LDH and low HDL C.) Low LDL and high HDL D.) Low DLD and high DHD

A.) Low HDL and high LDL

Which of the following is a property of dietary lipids? A.) Omega-3 fatty acids are always unsaturated B.) Lipids that are solid at room temperature are classified as oils C.) The fatty acids in triglycerides may be of chain length 2 to 25 carbons D.) The most common fatty acid chain length in triglycerides is 10 carbons

A.) Omega-3 fatty acids are always unsaturated

An omega-3 fatty acid has its first double bond on the A.) Third carbon from the methyl end B.) First 3 carbons from the acid end C.) First 3 carbons from the methyl end D.) Third carbon from the acid end

A.) Third carbon from the methyl end

According to the DRI, what is the upper limit of fat (g) that may be consumed by a healthy person requiring 3000 kcalories per day? A.) 66 B.) 117 C.) 33 D.) 83

B.) 117

For most adults, what is the recommended minimum amount of fat that should be consumed, as a percentage of total energy intake? A.) 15 B.) 20 C.) 5 D.) 35

B.) 20

Approximately how many milligrams of cholesterol are found in an egg? A.) 450 B.) 200 C.) 350 D.) 100

B.) 200

A meal providing 1200 kcalories contains 10 g of saturated fats, 14 g of monounsaturated fats, and 20 g of polyunsaturated fats. What is the percentage of energy supplied by the lipids? A.) 22 B.) 33 C.) 44 D.) 55

B.) 33

Which of the following is not a lipid A.) Cholesterol B.) Glycogen C.) Triglycerides D.) Omega-3 and omega-6 oils E.) Steroid

B.) Glycogen

Which of the following is a characteristic of cholesterol? A.) It is not formed in the body when provided by the diet B.) It is a precursor for bile and vitamin D synthesis C.) It is found in abundance in tropical fats such as palm oil. D.) It is absorbed directly into the blood.

B.) It is a precursor for bile and vitamin D synthesis

Which of the following lipids is an essential nutrient? A.) Lecithin B.) Linoleic acid C.) Cholesterol D.) Stearic acid

B.) Linoleic acid

Which of the following describes a fatty acid that has one double bond? A.) Polyunsaturated B.) Monounsaturated C.) Hydrogenated D.) Saturated

B.) Monounsaturated

Which of the following foods contains the highest amount of cholesterol? A.) 3 oz. of tuna canned in water B.) One boiled egg C.) 3 oz. turkey D.) 3 oz. ground beef 95% Lean

B.) One boiled egg

Which of the following is a common dietary saturated fatty acid? A.) Arachidonic acid B.) Stearic acid C.) Oleic acid D.) Linolenic acid

B.) Stearic acid

Which of the following does NOT describe a function of fat? A.) Adds flavor to food B.) Supplies up to 25% of the body's energy needs during rest C.) Serves as a carrier of fat-soluble vitamins D.) Is an essential constituent of body tissues

B.) Supplies up to 25% of the body's energy needs during rest

What compound is composed of 3 fatty acids and glycerol? A.) Lecithin B.) Triglyceride C.) Monoglyceride D.) Steroid

B.) Triglyceride