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14 terms

Digestive System

STUDY
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Digestive System
System inside animals in which food is taken in and broken down to the point at which useful substances can be abosorbed into and transported by the cicrulatory system to individual cells
Carbohydrates
Primary energy source
Fats
-energy source
-Insulates the body
-Protects vital organs from injury
-Conduct nerve impulse
Proteins
Build and repair muscle and cell membranes
Minerals
-Eneable chemical reactions
-Build bone and cartilages
Vitamins
-Chemicals used to make enzymes function
-Tissue development and tissue growth
-Fight and resist diseases
Water
-Maintain fluid levels
-Regulates body temperature
The end product of Carbohydrates
Glucose
The end product of Fats
Fatty acid and glycerol
The end product of Proteins
Amino acids
Fiber
Made of cellulose and other indigestible materials created by plants
Why is fiber important
Simulates the muscle of the digestive system
Mechanical Digestion
Physically breaking food down into smaller pieces
Chemical Digestion
Separation of food into its molecular compnents by chemical means