Nutrition CH 5

Which of the following lipids is a precursor for both vitamin D and testosterone? A) cholesterol C) eicosanoids B) alpha-linolenic acid D) saturated fat

cholesterol

Which of the following foods should provide the majority of fat in the Mediterranean diet? A) olive oil and olives C) cheese B) dairy D) eggs

olive oil and olives

Which of the following substances is a major component of cell membranes? A) cholesterol C) sterols B) triglycerides D) phospholipids

phospholipids

Which of the following lipids do not contain a glycerol backbone? A) sterols C) triglycerides B) phospholipids D) monoglycerides

sterols

Which of the following substances is produced by hydrogenating an unsaturated fatty acid? A) a trans fatty acid C) a polyunsaturated fatty acid B) a saturated fatty acid D) a monounsaturated fatty acid

trans fatty acid

Fat is the common name for which of the following substances? A) cholesterol C) phospholipids B) triglycerides D) sterols

triglycerides

True or False: Eating an egg a day may not be associated with an increased risk of heart disease in healthy individuals.

true

True or False: High blood cholesterol levels can be partly determined by your genetic makeup.

true

True or False: Lecithin and bile are examples of emulsifiers.

true

True or False: Lipids that are liquid at room temperature are called oils.

true

True or False: Long-chained fatty acids are not absorbed into the bloodstream directly and must be transported by carriers called chylomicrons.

true

True or False: The heart, liver, and resting muscles prefer fat as their fuel source, which spares glucose to be used by the nervous system and by red blood cells.

true

True or False: The primary risk factor for heart disease is an elevated LDL cholesterol level.

true

The current AMDR recommendation for fat in the American diet is A) 10 to 15 percent. C) 25 to 30 percent. B) 20 to 35 percent. D) 35 to 50 percent.

20 to 35

What is the maximum number of grams of fat that can be consumed by a person who eats 2,400 calories per day and wants no more than 30 percent of her calories to be from fat? A) 720 C) 80 B) 30 D) 100

80

Which of the following benefits is associated with omega-3 fatty acids? A) prevention of an irregular heart beat C) lowering of blood pressure B) reduction of atherosclerosis D) All the answers are correct.

All answers

Which of the following types of lipoprotein contains the highest percentage of protein? A) VLDL C) LDL B) HDL D) chylomicron

HDL

Which of the following statements regarding trans fats is correct? A) Their consumption raises both LDL levels and HDL levels. B) Their consumption raises triglyceride levels and lowers LDL levels. C) Their consumption raises LDL levels and lowers HDL levels. D) Their consumption raises blood pressure.

Their consumption raises LDL levels and lowers HDL levels.

Which of the following statements regarding phytosterols is incorrect? A) They raise LDL cholesterol levels as much as saturated fats do. B) They are found naturally in many vegetables, legumes, nuts, and seeds. C) They compete with cholesterol for absorption in the intestinal tract. D) They are found in plant cell membranes.

They raise LDL cholesterol levels as much as saturated fats do.

Which of the following actions likely has the smallest impact on your LDL cholesterol level? A) saturated fat intake C) trans fat intake B) dietary cholesterol intake D) They all have equal impact.

dietary cholesterol intake

Which of the following does not raise HDL cholesterol? A) losing weight C) getting regular exercise B) quitting smoking D) eating more fiber

eating more fiber

Of the following actions, the most effective way to improve HDL cholesterol levels is to A) lower saturated fat intake. C) engage in routine exercise. B) lower polyunsaturated fat intake. D) drink green tea.

engage in routine exercise

True or False: DHA and EPA are omega-6 fatty acids that are found in fish and are protective against heart disease and stroke.

false

True or False: Fat-free versions of cookies always have fewer calories than their full-fat counterparts.

false

True or False: More women in the United States die each year from breast cancer than from heart disease.

false

True or False: Unsaturated fatty acids are liquid at room temperature because they pack together more tightly than saturated fatty acids.

false

The two essential fatty acids are A) monoglycerides and diglycerides. B) cholesterol and trans fatty acids. c) linoleic acid and alpha-linolenic acid. D) PUFAs and MUFAs.

linoleic acid and alpha-linolenic acid.

A fatty acid that has a single double bond is called a A) unsaturated fatty acid. C) monounsaturated fatty acid. B) polyunsaturated fatty acid. D) saturated fatty acid.

monounsaturated fatty acid.