1. Describe the process of protein digestion in the stomach and in the small intestine. Include the roles of hydrochloric acid, pepsin, proteases, and peptidase in your answer.

2. How can vegetarians meet their protein needs without eating meat? Explain how protein deficiency can develop in vegetarians.

3. How might protein excess, or the type of protein eaten, influence health?

4. Explain the difference between nonessential, essential, and conditionally essential amino acids. Give examples of each.

5. Define metabolism, anabolism, and catabolism and give an example of each.

6. Explain how the body disposes of extra nitrogen. Indicate the role of the liver, kidneys and water.

7. What adaptations does the body make during a fast? What are ketone bodies? How does this apply to low carbohydrate diets?

8. Explain why people who drink alcohol excessively eat less food containing adequate nutrients. Indicate in your answer how alcohol overuse causes problems with nutrient metabolism.