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
Primary energy source
-Insulates the body
-Protects vital organs from injury
-Conduct nerve impulse
Build and repair muscle and cell membranes
-Eneable chemical reactions
-Build bone and cartilages
-Chemicals used to make enzymes function
-Tissue development and tissue growth
-Fight and resist diseases
-Maintain fluid levels
-Regulates body temperature
The end product of Carbohydrates
The end product of Fats
Fatty acid and glycerol
The end product of Proteins
Made of cellulose and other indigestible materials created by plants
Why is fiber important
Simulates the muscle of the digestive system
Physically breaking food down into smaller pieces
Separation of food into its molecular compnents by chemical means
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