9. What happens after the carbon dioxide is added? 10. Why is this NOT a good demonstration of the greenhouse effect? Liquid to Foam: How Egg Whites Change Texture 1. Name three food items that the article says require a beaten egg white foam. 2. What is the chemical composition of egg whites? 3. Proteins are made up of amino acids. How many amino acids exist naturally? 4. What part of amino acid structure makes each amino acid unique? 5. What does the term “hydrophilic” refer to? 6. When proteins fold, where are the hydrophobic amino acids located? 7. When egg whites are beaten, what happens to the proteins? 8. What is the primary purpose of beating egg whites in a recipe like the angel food cake described in the article? 9. Name the scientists who first showed by experimentation that trace amounts of copper stabilized egg white foam. 10. What protein in egg white forms a stabilizing complex with copper? 11. What is the name of the most common covalent bond that forms between amino acids containing sulfur-hydrogen side groups? 4
Fermentable Foods: Trouble in Your Diet 1. What is meant by the term “macronutrients”? 2. How are gluten and celiac disease related? 3. What is the connection between irritable bowel syndrome and FODMAP? 4. What is the difference between irritable bowel syndrome and celiac disease? 5. Oligosaccharides are classified as a type of carbohydrate. What are their chemical characteristics? 6. What happens to oligosaccharides made from glucose subunits when they reach the small intestine? 7. What happens when oligosaccharides made from the sugars galactose or fructose reach the small intestine, compared with those oligosaccharides made from glucose subunits? 8. What sugar is produced when amylase breaks down the disaccharide maltose? 9. What are the sugar components of the disaccharide lactose, compared with those found in maltose? 10. How do undigested sugars produce a bloated feeling as well as diarrhea in the intestine? 11. Why do people with irritable bowel syndrome differ in terms of what sugars produce their condition? 12. Explain the difference between celiac disease and FODMAP intolerance. 13. What does the “F” in FODMAPs stand for? 3D Printers: The Next Print Revolution 1. Why did Mario consider his smartphone case essential during cross-country training? 2. Since Mario was unable to repair his smartphone case, why didn’t he just order a new clip? 3. How does some of the motion of a 3D printer resemble that of an elevator? 4. Explain the horizontal motion of a 3D printer. 5. What is the difference in printing done by a 2D printer and a 3D printer? 6. What directs a 3D printer to produce the layers required to form a 3D image? 7. How does material come to be extruded from the printer heads of a 3D printer? Explain how this works.
- Fall '15
- The American, ........., air travel