Chapter 6 Lipids

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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


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