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Alpha-linolenic acid and linoleic acid are classified as _________ fatty acids. |
essential |
|
which is correct regarding trans fatty acids |
They raise LDL and lower HDL cholesterol |
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Which of the following correctly characterizes lipids? |
They do not dissolve in water. |
|
The main difference between fats and oils is that fats are ________. |
solid at room temperature |
|
In what form is most body fat stored? |
triglycerides. |
|
Lipids with high saturated fatty acid content are ____________ at room temperature. |
solid |
|
The chief contributors of saturated fatty acids in the U.S. diet include ________. |
animal products |
|
Saturated fatty acids predominate in which of the following lipids? |
butter |
|
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 |
|
Which of the following fats and oils provides the most polyunsaturated fatty acids? |
soybean oil |
|
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 |
|
In the Mediterranean Diet, the majority of fat in the diet is supplied by ________. |
olive oil and olives |
|
Fat digestion begins in the ________. |
mouth |
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Lingual lipase breaks down ________. |
triglycerides |
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Which lipoprotein is responsible for transporting cholesterol from the liver to tissues? |
low density lipoprotein (LDL) |
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High levels of ______ in the blood are associated with lower risk of cardiovascular disease. |
HDL |
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Which of the following lipoproteins contains the highest proportion of protein? |
HDL |
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Lipoprotein lipase functions to ________. |
break down triglycerides from lipoproteins for transfer into cells |
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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 |
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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 |
|
Excessive intakes of saturated fatty acids tend to ________. |
increase cholesterol deposited in arteries |
|
Which of the following blood levels of LDL cholesterol would increase risk for cardiovascular disease? |
over 160 mg/dl |
|
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. |
|
Trans fatty acids are now considered more atherogenic than saturated fatty acids because they ________. |
elevate LDL levels, while decreasing HDL |
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