nutrition practice test 5

Which of the following is an omega-3 fat? Acetic acid Linoleic acid Docosahexaenoic acid Palmitic acid

Docosahexaenoic acid

Which of the following is a characteristic of the blood cholesterol level? It can be reduced by increasing dietary intake of insoluble fiber It can be lowered by increasing dietary intake of trans-fat It can be lowered more effectively by reducing dietary intake of saturated fat than of cholesterol The desirable upper range is 250 mg per 100 mL

It can be lowered more effectively by reducing dietary intake of saturated fat than of cholesterol

Which of the following is a feature of the lipid content of foods? Omega-3 fats are found in fish Cholesterol is found in peanuts Essential fatty acids are found in olestra Low-density lipoproteins are found in coconut oil

Omega-3 fats are found in fish

What part of the gastrointestinal tract is the predominant site of dietary fat hydrolysis? Mouth Large intestine Small intestine Stomach

Small intestine

Which of the following is a feature of phospholipids? Found naturally only in animal foods Soluble in both water and fat Resistant to digestion Highly susceptible to oxidation

Soluble in both water and fat

Approximately how many milligrams of cholesterol are found in an egg? 200 100 300 450

200

What percentage of stored body fat is in the form of triglycerides? 78 50 2 99

99

Which of the following would be least effective at preventing oxidation of the polyunsaturated fatty acids in processed foods? Partial hydrogenation Addition of phosphorus Refrigeration Addition of BHT

Addition of phosphorus

What is the major sterol in the diet? Arachidonic acid Lecithin Cholesterol Palm oil

Cholesterol

Which of the following has the highest percentage of its fat in saturated form? Coconut oil Beef tallow Walnut oil Butter

Coconut oil

All of the following compounds may be synthesized from cholesterol except vitamin D. sex hormones. glucose. bile.

glucose

A low risk of cardiovascular disease correlates with high blood levels of? high-density lipoproteins. very-low-density lipoproteins. free fatty acids. triglycerides.

high-density lipoproteins.

Each of the following is known to be linked to excessive intake of fats except? lactose intolerance. cancer. diabetes. obesity.

lactose intolerance.

The oils found in walnuts, soybeans, flaxseed, and wheat germ represent a good source of preformed? eicosanoids. docosahexaenoic acid. linolenic acid. eicosapentaenoic acid.

linolenic acid.

The results of blood tests that reveal a person's total cholesterol and triglycerides are called a? lipid profile. personal lipids count. degenerative disease assessment. circulating fat count.

lipid profile.

The composition of lecithin could include all of the following except? fatty acids. magnesium. choline. phosphate.

magnesium.

All of the following are rich sources of polyunsaturated fatty acids except? palm oil. soybean oil. fish oils. safflower o

palm oil.

Each of the following may act as an emulsifier in the intestinal tract except? pancreatic lipase. bile phospholipids. lecithin. bile acids.

pancreatic lipase.

Characteristics of hydrogenated oils include all of the following except? some of their fatty acids change shape from cis to trans. they lower HDL and raise LDL cholesterol in the body. products containing them become rancid sooner, contributing to a shorter shelf life. they are stored in adipose tissue.

products containing them become rancid sooner, contributing to a shorter shelf life.

In which form are most dietary lipids found? Glycerols Triglycerides Sterols Monoglycerides

Triglycerides