Question | Answer |
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 |