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HLambert
Digetsive
16
Science
7th Grade
03/22/2010

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Term
amino acid
Definition
building blocks of protiens
Term
carbohydrate
Definition
the bodys main energy source-sugars,starch,and fibers-formed of carbon,hydrogen, and oxygenatoms
Term
chemical digestion
Definition
digestive system process that occurs when chemicals break down large food molecules into smaller ones that can be absorbed by the body
Term
chyme
Definition
thin,watery product of digestion that moves slowly out of the stomach and into the small intestine
Term
digestion
Definition
chemical and mechanical processes that breaks down food into smaller molecuoles
Term
enzyme
Definition
a type of protein that speeds up that speeds up the rate of chemical reactons
Term
fat
Definition
nutrient that provides energy and helps the body absorb vitamins
Term
food group
Definition
one of five groups of foods that contain the same nutrients:breads and cereals,vegetables,fruit,milk,and meat
Term
food group
Definition
one of five groups of foods that contain the same nutrients:breads and cereals,vegetables,fruit,milk,and meat
Term
mechanical digestion
Definition
digestive system process where food is broken down through chewing,mixing,and churning
Term
mineral
Definition
inorganic nutrient that regulates many of the body's chemical reactions
Term
nutrient
Definition
substances in food-proteins,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
protein
Definition
nutrient made up of amino acids that is used for replacement and repair of body cells
Term
villi
Definition
finger like projections in the wall of the small intestine
Term
vitamin
Definition
organic,water-soluble or fat-soluble nurtient needed in small quantities
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