Lipids differ in their degree of saturation or unsaturation due to their number of ____
a. amino acids
b. double bonds
c. saccharide units
d. peptide linkages
e. oxygen atoms
ANS: B
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Public health organizations recommend which of the following strategies to prevent or reduce the risk for heart disease?
A. Consume two glasses of wine per day. B. Increase dietary fiber intake, especially from oat bran, beans, and fruits. C. Maintain high blood glucose levels. D. Avoid plant sterols.
Which of the following is a feature of the lymphatic system?
A. It removes waste materials from the blood and produces urine. B. It serves to transport water-soluble vitamins to the heart. C. It funnels nutrients to the liver via a one-way pump. D. It picks up and transports dietary lipids.
Metallothionine is a protein produced in intestinal cells that plays an important role in regulating _____ absorption
A. iron B. selenium C. zinc D. magnesium
Body composition refers to the relative amounts of fat and ________ in the body
A) muscle B) muscle and bone C) fat-free mass D) lean muscle