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Ch. 15 terms

QuestionAnswer
nutrient the substances that provide the raw materials and energy the body needs to carry out all it's essential proscesses
calorie the amount of energy needed to raise the temprature of one gram of water by ne degree celsius
carbohydrate major source of energy
glucose the major source of energy for your body's cells
fat energy-contaning nutrients that insulate and protect your internal organs
protien nutrients that contain nitrogen as well as oxygen as well as carbon,hydrogen,and oxygen
amino acids small units that protien is made of
vitamin helper molecules in a varitey of chemical reactions in the body
mineral nutrients that are not made of living things
Food Guide Pyramid classifies food into 6 groups
Percent Daily Value shows you how the nutritional content of one serving fits into the reccomended for a person who consumes 2,000 calories per day
Dietary Refrence Intakes giudelines that show the amounts of nutrients that are needed evrey day
digestion the proscess by whitch your body breaks down food into small nutrient molecules
absorbstion the proscess bywhitch nutrient molecules pass through the wall of your digestive system into your blood
saliva the fluid released when your mouth waters
enzyme protiens that speed up chemical reactions in the body
epiglottis as you swallow this flap of tissue seals off your windpipe,whitch carries air into your lungs
esophagus a muscular tube that connects the mouth to the stomach
mucus a thick, slippery substance produced by the body
peristalsis involuntary waves of muscle contraction
stomach a j-shaped muscular pouch located in the abdomen
small intestine the part of the digestive system where most chemical digestion takes place
liver the body's largest organ;produces bile;breaks down molecules and helps eliminate nitrogen from the body
bile a substance that breaks up fat particles
gallbladder organ that stores bile
panceras a triangular organ lies between the stomach and the first part of small intestine
Created by: emily321
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