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Quiz 5

STUDY
PLAY
In which form are most dietary lipids found?

a. Sterols
b. Glycerols
c. Triglycerides
d. Monoglycerides
Triglycerides
Lipids that are liquid at room temperature are known as

a. oils
b. fats
c. omegas
d. cholesterol
oils
What is the chemical composition of triglycerides?

a. Hexose polymers
b. Glycogen granules
c. Fatty acids and glycerol
d. Combinations of long chain fatty acids
Fatty acids and glycerol
Lipids differ in their degree of saturation or unsaturation due to their number of...

a. amino acids
b. double bonds
c. saccharide units
d. peptide linkages
double bonds
Which of the following describes a fatty acid that has one double bond?

a. Saturated
b. Hydrogenated
c. Monounsaturated
d. Polyunsaturated
Monounsaturated
What type of fatty acid is found in high amounts in olive oil?

a. Saturated
b. Monounsaturated
c. Polyunsaturated
d. Partially hydrogenated
Monounsaturated
A major cause of rancidity of lipids in foods is exposure to...

a. heat and oxygen
b. fluorescent lighting
c. freezer temperatures
d. enrichment additives
heat and oxygen
Which of the following has the highest percentage of its fat in polyunsaturated form?

a. Butter
b. Corn oil
c. Beef tallow
d. Coconut oil
Corn oil
Which of the following is a good source of omega-3 oil? Hint: look up in Diet Analysis 9 or Appendix H

a. walnuts .25 cup
b. butter 1 pat
c. peanut butter (2tbs.)
d. egg white (1)
walnuts .25 cup
Which of the following foods contains cholesterol?

a. Corn
b. Olives
c. Roasted turkey
d. Roasted peanuts
Roasted turkey
About how much cholesterol is synthesized by the liver every day?

a. None
b. A few mg
c. Less than 300 mg
d. At least 800 mg
At least 800 mg
Cholesterol is needed by the body because all of the following compounds may be synthesized from cholesterol except

a. bile
b. glucose
c. vitamin D
d. sex hormones
glucose
In the digestion of fats, emulsifiers function as

a. enzymes
b. hormones
c. detergents to mechanically breakdown fats
d. chylomicrons
detergents to mechanically breakdown fats
What is the storage site of bile?

a. Liver
b. Pancreas
c. Gallbladder
d. Intestinal epithelial cells
Gallbladder
After fat is digested it is absorbed first into

a. lymphatic system (lacteals found in small intestines)
b. blood vessels of the stomach
c. blood vessels of the large intestines
lymphatic system (lacteals found in small
After a meal, most of the fat that eventually
empties into the blood is in the form of particles known as

a. micelles
b. chylomicrons
c. low-density lipoproteins
d. very-low-density lipoproteins
chylomicrons
An important function of fat in the body is to

a. build muscle tissue
b. regulate blood glucose levels
c. protect vital organs against shock
d. provide precursors for glucose synthesis
protect vital organs against shock
Which of the following is an omega-3 fat?

a. Acetic acid
b. Palmitic acid
c. Linoleic acid
d. Docosahexaenoic acid
Docosahexaenoic acid
Which of the following foods provide(s) essential fatty acids?

a. Fish only
b. Beef only
c. Plants only
d. Fish, beef, and plants
fish, beef, and plants
What is the highest blood triglyceride
concentration (mg/dL) that falls within the desirable range?

a. 99
b. 149
c. 199
d. 299
149
What is the highest total blood cholesterol
concentration (mg/dL) that falls within the desirable range?

a. 50
b. 101
c. 199
d. 299
199
Which of the following is a characteristic of egg nutrition?

a. Eggs are high in both cholesterol and saturated fat
b. High omega-3 fat eggs are now available by prescription only
c. Although it is high in cholesterol, the egg is low in saturated fat
d. Even in people with a healthy lipid profile, consumption of one egg/day is detrimental
Although it is high in cholesterol, the egg is low in saturated fat
Major sources of cholesterol include all of the following except

a. Meat
b. Shrimp
c. Avocados
d. Hamburger
Avacados
Which of the following vegetable oils is a good source of omega-3 fatty acids?

a. Corn
b. Canola
c. Sesame
d. Coconut
Canola
Which of the following is a feature of the lipid content of foods?

a. Omega-3 fats are found in fish
b. Cholesterol is found in peanuts
c. Essential fatty acids are found in olestra
d. Low-density lipoproteins are found in coconut oil
Omega-3 fats are found in fish
Which of the following is a likely explanation for the imbalance between omega-6 and omega-3 lipids in the U.S. diet?

a. High intakes of meat and low intakes of fish
b. Low intakes of vegetable oils and high intakes of fish
c. High intakes of beef fat and low intakes of vegetable oils
d. Low intakes of beef fat and high intakes of vegetable oils
High intakes of meat and low intakes of fish
According to the Dietary Guidelines, what should be the maximum total fat intake as a percentage of energy intake?

a. 10
b. 20
c. 35
d. 50
35
Approximately how many grams of fat would be contained in an 800 kcalorie meal which provides 50% of the energy(kcalories) as carbohydrates, 20% from protein, and the remainder from fat?

a. 15 grams
b. 22 grams
c. 27 grams
d. 35 grams
27 grams
What is the name of the enzyme which is needed for the chemical digestion of fats?

a. bile
b. lipase
c. amylase
d. pepsin
lipase
Which of the following statements about cholesterol is not correct?

a. the yolk of an egg has more cholesterol than the white of the egg
b. there is an association between high blood cholesterol and increase risk for atherosclerosis and heart attacks
c. cholesterol is not needed by the body for any functions
d. animal foods have more cholesterol than plant foods
cholesterol is not needed by the body for any functions
Which of the following breakfast menus would be best for a person with high blood cholesterol and a history of coronary blood disease?

a. bowl of high sugar breakfast cereals, coffee with sugar, and donut
b. three eggs, two sausages, biscuits and cream gravy, coffee with cream
c. hot oatmeal, fresh fruit cup with citrus and vegetable juice
d. skip breakfast and just have coffee
hot oatmeal, fresh fruit cup with citrus and vegetable juice