Ch 5
All of the following factors help raise HDL levels, except:
insoluble dietary fibers
Which of the following is not a sterol compound found in the body?
lecithin
Which of the following fatty acids is an essential fatty acid?
linoleic acid and linolenic acid only
Fatty acids differ from one another according to all of the following characteristics, except:
location of double bonds, length of their chains, degree of saturation
High ___________________ cholesterol is associated with a high risk of heart attack.
low-density lipoproteins (LDL)
The key dietary principle for fat is __________.
moderation
Which of the following elements is not part of various lipid compounds?
nitrogen
Fats help add all of the following to foods, except
bulk
T/F LDL is the "good" cholesterol.
false
T/F Most fats are absorbed straight into the blood stream after digestion.
false
This lipoprotein is responsible for removing cholesterol from cells and carrying the cholesterol back to the liver for recycling or disposal.
high-density lipoproteins (HDL)
Fats are ______, meaning that they tend to separate from the watery fluids of the GI tract
hydrophobic
Monounsaturated fatty acids help to protect against heart disease by all of the following except
increasing blood pressure
The DRI and Dietary Guidelines recommend a diet that is low in saturated fat, trans fat, and cholesterol and provides _____ percent of the daily energy intake from fat.
20-35
One pound of body fat is equal to ______ kcalories.
3500
If a piece of chocolate has 9 grams of fat, how many kcals from fat does it provide? Give the number only.
81
Which of the following vitamins is NOT fat soluble?
C
Which of the following statements is false regarding lipid chemistry?
Fatty acids made up of 20 carbons are the most common in foods.
___________ is the nation's number one killer of adults.
Heart Disease
____ are formed when the body uses fat fragments to make energy.
Ketones
Which of the following is not a role of phospholipids
acting as a cofactor for certain fat-soluble vitamins
What are roles of phosopholipids
acting as an emulsifier, helping fat-soluble substances pass in and out of cells, being a part of cell membranes
Which of the following oils is not a major source of monounsaturated fats?
corn oil
Which of the following is not a major source of trans fats?
eggs
Which food is a good source of Omega-3 fatty acids?
fish
What elements are part of various lipid compounds?
oxygen, carbon, hydrogen
Which type of fat information does NOT have to be included on a nutrition facts label?
polyunsaturated
Which of the following is an advantage of hydrogenation
prolonged shelf life of fats
What are some roles of lipids in the body?
protection against shock, insulation against temperature extremes, provision of energy, maintenance of cell membranes
Which of the following is not a role of lipids in the body?
provision of materials for hair and nail creation
In the body, trans-fatty acids that derive from hydrogenation behave more like ________ fats.
saturated
Of the following locations, which one is the site of the greatest amount of fat digestion?
small intestine
What are some sterol compounds found in the body?
testosterone, cholesterol, cortisol, vitamin D
Emulsifiers help mix fats with ____________
water
