Chapter 6 Lipids
Saturated fatty acids predominate in which of the following lipids?
butter
In the Mediterranean Diet, the majority of fat in the diet is supplied by ________.
olive oil and olives
Which of the following blood levels of LDL cholesterol would increase risk for cardiovascular disease?
over 160 mg/dl
High-density lipoproteins function in lipid transport by ________.
picking up cholesterol from dying cells and other sources for delivery to other lipoproteins and the liver for disposal
Lingual lipase breaks down ________.
triglycerides
In what form is most body fat stored?
triglycerides.
Immediately after a meal, newly digested and absorbed dietary fats appear in the lymph, and then the blood, as a part of which of the following?
chylomicrons
High levels of ______ in the blood are associated with lower risk of cardiovascular disease.
HDL
Which of the following lipoproteins contains the highest proportion of protein?
HDL
Which of the following correctly characterizes lipids?
They do not dissolve in water.
which is correct regarding trans fatty acids
They raise LDL and lower HDL cholesterol
Which essential fatty acid is responsible for lowering the risk of coronary heart disease?
alpha-linolenic
Cholesterol is ________.
an important part of human cell membranes and is necessary to make some hormones
The chief contributors of saturated fatty acids in the U.S. diet include ________.
animal products
Monounsaturated fatty acids ________.
are liquid at room temperature have one double bond in the fatty acid chain lower cholesterol ANS: All of these are correct
Lipoprotein lipase functions to ________.
break down triglycerides from lipoproteins for transfer into cells
Trans fatty acids are now considered more atherogenic than saturated fatty acids because they ________.
elevate LDL levels, while decreasing HDL
Alpha-linolenic acid and linoleic acid are classified as _________ fatty acids.
essential
Excessive intakes of saturated fatty acids tend to ________.
increase cholesterol deposited in arteries
A diet designed to reduce elevated serum LDL cholesterol levels ________.
is low in saturated fats is reduced in dietary cholesterol provides adequate amounts of soluble fiber ANS: All of these are correct.
Which lipoprotein is responsible for transporting cholesterol from the liver to tissues?
low density lipoprotein (LDL)
Fat digestion begins in the ________.
mouth
Lipids with high saturated fatty acid content are ____________ at room temperature.
solid
The main difference between fats and oils is that fats are ________.
solid at room temperature
Which of the following fats and oils provides the most polyunsaturated fatty acids?
soybean oil