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digestion
digestion
15
Science
7th Grade
03/22/2010

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Term
Amino acids
Definition
Building blocks of proteins.
Term
Carbohydrates
Definition
The body's main energy source.
Term
Chemical digestion
Definition
Digestive system process that occurs when chemicals break down larger 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 intestint.
Term
Digestion
Definition
Chemical and mechanical process that breaks food down into small molecules so that they can be absorbed by the body.
Term
Enzyme
Definition
A type of protein that speeds up the rate of chemical reactions in the body but is not used up or changed itself in any way during the reaction.
Term
Fat
Definition
Nutriant that provides energy and helps the body absorb vitamians.
Term
Food groups
Definition
one of five groups of food that contain the same nutriants.
Term
Mechanical digestion
Definition
Digestive system process where food is broken down through chewing,mixing,and churnig.
Term
Mineral
Definition
Inorganic nutrient that regulates many of the bodys chemical reactions.
Term
Nutriant
Definition
Substances in food.
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 and has a large molecules that contain carbon,hydragin,,oxygon,and nitrigion.
Term
Villi
Definition
Finger like projections in the wall of the small intestint that increase the surface area for absorption of nutriant molucules.
Term
Nutrient
Definition
Organic, water-soluable or fat-soluble nutrient needed in small quantities for growth,regulating body functions,and preventing disease.
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