Describe very-low-density lipoproteins (VLDLs) and their functions
One type of lipoprotein made by the liver is a VLDL. VLDLs are similar to chylomicra in that they contain triglycerides and cholesterol in their cores and are surrounded by phospholipids and proteins on their surfaces. However, VLDLs have a lower lipid-to-protein ratio than do chylomicra, making them smaller and denser. Like chylomicra, the primary function of VLDLs is to deliver fatty acids to cells. But unlike chylomicra, which onlytransport dietary fatty acids, VLDLs also transport fatty acids derived from liver and adipose tissue. When VLDLs in the blood circulate past cells that produce lipoprotein lipase, the enzyme cleaves off fatty acids that are in turn taken up by the surrounding cells. In this way, tissues in need of fatty acids are able to obtain them directly from the bloodstream.
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If one cup of reduced-fat milk provides 8 percent of the Daily Value for fat, this means that
A. 8 percent of the calories in the milk are from fat. B. 8 percent of the calories in the milk are from saturated fat. C. the cup of milk provides 8 percent of the total fat allowed in the day. D. the cup of milk provides 8 percent of the total calories allowed in the day.
All of the following are possible sources of food contamination EXCEPT:
1.antibiotics given to animals. 2.hormones given to animals. 3.pesticides. 4.purified water.
Enteral nutrition refers to delivery of nutrients distal to the oral cavity of the gastrointestinal tract via a tube, catheter, or _______________
Fill in the blank(s) with correct word
Which of these carbohydrates is NOT broken down by human enzymes?
a. amylose b. amylopectin c. fiber d. glycogen