Chapters 15 and 16



1. Plants do not eat but do require CO2, H2O, and sunlight to live.  How is this different from animals?  What system do plants have to allow for their simple needs?


2. What classes of substances constitute the macronutrients?  The micronutrients?


3. All 20 amino acids are essential to build new proteins.  Why are only a few amino acids called essential?


4. Why are plant oils usually liquids and animal fats usually solid?


5. Explain the French paradox.


6. What are some strategies that can be used to increase HDL levels?


7. Which vitamins must be consumed on a regular basis, and why?


8. A typical diet in the United States provides 20% of the calories from protein, 55% from carbohydrates, and 25% from fats.  Calculate the grams of protein, carbohydrate, and fat to be included each day in diets having the following caloric requirements.

a. 1600 kcal

b. 2300 kcal

c. 1900 kcal