Ch 6 Quiz - Human Nutrition

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The enzyme ______ is found in the walls of capillaries. The enzyme breaks down triglycerides found in chylomicrons into fatty acids and glycerol.

lipoprotein lipase

Lecithin is a type of

phospholipid

Chase is a 22-year-old college student. According to recommendations of the Acceptable Macronutrient Distribution Range (AMDR), fat should comprise ________% of his total energy intake each day.

20 to 35

Compared to the other lipoproteins, which lipoprotein carries the most triglycerides in the bloodstream?

Chylomicron

Which of the following foods is naturally a rich source of polyunsaturated fatty acids?

corn oil

Liana has elevated blood levels of LDL. To lower her LDL levels, she should _______.

eat less red meat

Which of the following substances carries cholesterol away from tissues?

HDL

Which of the following lipoproteins contains the highest percentage of cholesterol?

LDL

Which of the following statements regarding C reactive protein is false?

People with low CRP are more likely to develop cardiovascular disease.

Alpha-linolenic acid is a precursor for _______, important for eicosanoid synthesis.

docosahexaenoic acid

A scientist has isolated a fatty acid that has 26 carbons bonded together. All of the carbon atoms in the chainare connected by single bonds. The only other elements in the compound are hydrogen and oxygen. Based on this information, the compound is a(n)________ fatty acid.

saturated

Major functions of lipids include all of the following EXCEPT

stimulate the production of vitamins and minerals

Bill recorded his food intake for a week and then used a computerized dietary analysis program to analyze his diet record. According to the results of the analysis, his average fat intake was ________% of total calories each day, which is within the Acceptable Macronutrient Distribution Range.

25

Which of the following statements is true?

A polyunsaturated fatty acid has two or more double bonds between carbons in the hydrocarbon chain.

Which of the following fatty acids is an essential fatty acid?

Alpha-linolenic acid

Which of the following foods naturally contains cholesterol?

chicken

Which of the following plant oils contains the highest amount of saturated fat per tablespoon?

coconut oil

Maggie was a subject in a clinical study that was designed to determine the effects of certain diets on health. While participating in the study, she was given a synthetic formula diet that provided vitamins, minerals, egg protein, purified water, and potato starch. Within a few weeks, Maggie's hair began to fall out and she developed patches of scaly skin on her arms and legs. Which of the following substances should be added to her formula to treat her nutritional deficiency?

essential fatty acids

A scientist has discovered a new molecular compound that is a long chain of 26 carbons bonded together, with a methyl group on one end and an acid group on the other end of the molecule. The compound does not contain any nitrogen or sulfur atoms. Based on this information, the compound is a(n) ________.

fatty acid

Albert is a healthy, 23-year-old college student. He would like to know more about his risk of cardiovascular disease, so he can take preventive measures, if they are necessary. Albert should ________.

have a lipoprotein profile performed on a sample of his blood

Having high blood levels of ________ may increase a person's risk of CVD.

homocysteine


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