What is the most common lipid found in animals that is characterized by a four-ring core structure?
A) ?prostaglandins
B) ?leukotrienes
C) ?cholesterol
D) ?glycolipids
C
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Digestion of macronutrients begins in the mouth with enzyme action on: a. carbohydrates, fats, and proteins by various enzymes. b. proteins by proteases
c. fats by carbohydrases. d. fats by proteases. e. starches by carbohydrases.
During the period between infancy and adulthood, protein requirements per unit of body weight:
a. gradually decrease. b. gradually increase. c. vary depending on growth rate. d. stay fairly constant.
The Dietary Guidelines for Americans recommend all of the following except: a. consuming less than 10% of calories from saturated fatty acids. b. consuming less than 300 mg per day of dietary cholesterol
c. increasing trans fat consumption in the diet. d. using oils to replace solid fats when possible. e. keeping total fat consumption between 20 and 35% of total energy.
Lacto-ovo vegetarian diets include all of the following EXCEPT:
a. dairy products. b. eggs. c. fish. d. plant foods.