The overall density of a lipoprotein is determined by
A. the amount of cholesterol inside.
B. the amount of phospholipids in the outer shell.
C. the proportion of protein in the outer shell.
D. none of the above.
ANS: C
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Indicate whether the statement is true or false
Which of the following statements is FALSE regarding free radicals?
A) Many diseases, such as cancer and heart disease, are linked to free radical damage. B) Our body has no mechanism to combat free radicals. C) Exposure to pollution increases free radical production. D) Free radicals are formed as a by-product of healthy metabolism.
Which of the following is a feature of choline in nutrition?
a. It is an analog of ascorbic acid. b. It is abundant in green leafy vegetables. c. The body can synthesize it from cysteine. d. Average intakes in the United States are lower than recommended. e. There is no RDA for it.
How does the Recommended Dietary Allowance (RDA) differ from the Adequate Intake (AI)?
a. The strength of the research data used to determine the values differs. b. The RDA is a U.S. standard while the AI is an international standard. c. The RDA values are given in pounds and ounces while the AI values are given in kilograms and grams. d. There is no difference. These are interchangeable terms.