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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 body’s 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
- Glucose, blood glucose, Carbohydrate