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Unformatted text preview: Chapter 4 Carbohydrates: Sugars, Starches, and Fibers Glucose and glycogen provide half of the energy our muscle and tissues use. The other half of the bodys energy comes mostly from fats. People do not eat glucose and glycogen directly. We eat foods rich in carbohydrates which provide us with glucose for energy and we store the rest as glycogen. All plant foods (whole grains, vegetable, legumes, and fruits) provide energy. Milk also provides carbohydrates STRUCTURE OF CARBOHYDRATES There are 4 main atoms found in nutrients 1. Hydrogen- can form only one bond with other atoms H- 2. Oxygen- can form two bonds with other atoms -O- 3. Nitrogen- can form three bonds with other atoms -N- 4. Carbon can form four bonds with other atoms -C- Chemists represent the bonds as lines between chemical symbols (O-H) For example ethyl alcohol (active ingredient in alcoholic beverages)...
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- Spring '08