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D.Sykes
Digestion
18
Science
7th Grade
03/22/2010

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Term
Digestion
Definition
the muscular contractions of the esophagus
Term
carbohydrates
Definition
increase the surface area of the small intestine
Term
enzymes
Definition
building blocks of proteins
Term
amino acid
Definition
building blocks of proteins
Term
carbohydrates
Definition
the bodys main energy source
Term
chemical digestion
Definition
digestive system process that occurs when chemicals break down large food molecules into absorbable smaller ones
Term
chyme
Definition
thin watery product of digestion that slowly moves out of the stomach into the small intestine
Term
digestion
Definition
chemical and mechanical process that breaks down food into small molecules tghat can be absorbed by the body
Term
enzyme
Definition
type of protien that speeds up the chemical reaction rate
Term
fat
Definition
nutrient that provides energy and helps the body absorb vitamins (saturated or unsaturated)
Term
food group
Definition
one of five groups of foods that contain the same nutrients
Term
mechanical digestion
Definition
digestive system process where food is broken down through chewing mixing or churning
Term
mineral
Definition
inorganic nutrient that regulates many of the bodys chemical reactions;builds cells,sends nerve impulses,& carries oxygen
Term
nutrient
Definition
substances in food- protiens carbohydrates fats vitamins minerals and water-that the body uses for cell development,repair,and growth and that provide energy
Term
peristalsis
Definition
waves of muscular contractions that move food through the digestive system
Term
protien
Definition
nutrient made up of amino acids that is used for replacement and repair of body cells
Term
villi
Definition
increase surface area of intestine.
Term
vitamin
Definition
helps cells repair and replace increases health
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