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BPK 110 (61)
Chapter 4

Kin 110 - Chapter 4

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Simon Fraser University
Biomedical Physio & Kines
BPK 110
Leah Esplen

KIN 110 – CHAPTER 4 – Carbohydrates Carbohydrates - 4kilocalories per gram - 2 Hydrogen and 1 Oxygen for one Carbon (CH 2O) - Simple carbohydrates: Sugars - Complex carbohydrates: Starches and Fiber Simple Carbohydrates - Simple Carbohydrates: Monosaccharides (1 sugar) & Disaccharides (2) Monosaccharides - Glucose: Most abundant in nature; used for the brain - Fructose: Fruit sugar; Most sweet - Galactose: Usually chemically bonded with Glucose to form Lactose - Pentose: Nucleic acid component - Sugar Alcohol: Sweetener Disaccharides - Condensation: Combines sugars - Sucrose: Table sugar - Lactose: Milk sugar - Maltose: Rarely in foods; Formed when starch breaks down Complex Carbohydrates - Chains of two or more sugar molecules - Oligosaccharides: Short carbohydrate chains of 3-10 sugar molecules - Polysaccharides: Long carbohydrate chains of monosaccharides - Starch: Stored as Amylose (unbranched) & Amylopectin (branches) - Glycogen: Animal starch; Stored in liver and skeletal muscle - Fiber: Dietary Fiber: Nondigestible, Functional Fiber: Nondigestible, physiological benefit, Total Fiber: Sum of Dietary and Functional Fiber Digestion Route Where Source of Chemical or Enzymes Enzyme Mouth Salivary Glands Salivary Amylase Stomach Acid Stops Salivary Amylase S. Intestine Pancreas Pancreatic Amylase Microvilli Maltase Sucrase Lactase L. Intestine
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