Nutrition Chapter 5 part 2

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***High levels of HDL in the blood are associated with -improved immune function -a reduced risk of heart disease -increased risk of colon cancer -increased risk of breast and prostate cancer

a reduced risk of heart disease

**In general populations that have a high intake of total fat have a higher incidence of _________than populations that have a lower intake? -certain types of cancer -heart disease -obesity -all of these choices are correct

all of above are correct

***Which of the following lipoproteins contains the highest percentage of cholesterol? -chylomicrons -low density lipoproteins -high density lipoproteins -very low density lipoproteins

low density lipoproteins

***Which of the following is formed in the LUMEN of the small intestine during lipid digestion? -micelles -triglycerides -eicosanoids -cholesterol

micelles

***The function of bile in triglyceride digestion is -to hydrolyze (split) the bond that attaches fatty acids to glycerol -to break fat into small globules -facilitate the formation of chylomicrons -to bind and transport lipids in the blood

to break fat into small globules

***If we were to analyze the composition of adipose tissue, you would likely find an abundance of: -micelles -triglycerides -eicosanoids -cholesterol

triglycerides

****The primary function of lipoprotein lipase is to: -convert nonessential fatty acids into essential fatty acids -transport lipids through the blood -convert cis fatty acids into trans fatty acids -help clear triglycerides from circulating lipoproteins in the blood

-help clear triglycerides from circulating lipoproteins in the blood

****When energy is ingested in excess of needs, the excess: -is lost as heat -is converted into triglycerides and stored in adipose tissue -is converted into cholesterol and stored in the liver -is metabolized by the muscles and stored as ATP

-is converted into triglycerides and stored in adipose tissue

***Reverse cholesterol transport is accomplished by? -chylomicrons -LDL -VLDL -HDL

HDL

***Which of the following is required for cells to take up low density lipoproteins? -lipoprotein lipase -homocysteine -LDL receptors -insulin

LDL receptors

***_____ promotes the uptake of fatty acids and glycerol by cells to be used as fuel or for storage? -lipoprotein lipase -homocysteine -LDL receptors -insulin

Lipoprotein lipase

****Immune cells within the lining of the blood vessels have____________receptors which mediate the uptake of oxidized LDL cholesterol? -LDL -Scavenger -foam -insulin

SCAVENGER

***Chylocmicrons are formed in the: -intestine -liver -lymph -blood

intestine

****Hormone sensitive lipase: -is activated during periods of fasting -is needed to deposit fatty acids into adipose tissue -is needed for phosphoglyceride digestion -is required for lipid digestion by cells lining blood vessels

is activated during periods of fasting

***the precursor for eicosanoids with health promoting properties is/are? -arachidonic acid -omega 6 fatty acids -omega 3 fatty acids -oleic acid

omega 3 fatty acid

***Which of the following is characteristic of atherosclerosis? -oxidation of LDL particles -inflammation of the lining of the colon -high HDL levels -production of chylomicrons by cells lining the blood vessels

oxidation of LDL particles

***Which organ produces the lipase enzyme that accomplishes the bulk of lipid digestion? -stomach -pancreas -mouth -lipid

pancreas


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