BIOL 1503 Chapter : CHAPTER 41 NUTRITION
Document Summary
Essential amino acids: 8 required by many animals, have to get them from diet (other animals can make them; humans cannot, malnutrition: protein deficiency: kwashiorkor. Labels: know how to read labels and note serving size, changed serving size rules in january, trans fats don"t have to be listed over a certain percentage, trans fats not processed in body; stick to lining. Mouth: herbivores, large, flat molars and well-developed jaws for chewing. Incisors and canines poorly developed or missing: carnivores. Jagged molars; sharp canines and incisors: omnivores, combination of grinding molars and sharp canines and incisors. Saliva: moistens and lubricates food to facilitate swallowing, dissolves food particles to facilitate taste, kills ingested bacteria. Initiates digestion of starch with amylase (not very important) Swallowing: swallowing food closes epiglottis and uvula, bolus slides past esophageal sphincter (voluntary muscle) and moves by peristalsis to stomach, epiglottis moves up to breathe, regurgitation. Lactic acid converted to pyruvic acid: hormones broken down here.
