Digestive System Assignment Introduction: Digestion is the process of breaking down food into smaller molecules that can be absorbed into the bloodstream.
The digestive systems most important function is to provide the body with ENERGY. Other functions include: ·Aid in the digestion and metabolism of food ·Muscle contraction ·Circulation and formation of blood cells ·Building new tissues-maintenance and repair ·Nerve transmission ·Maintain body temperature Physical digestion is when the food molecules are broken down into
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organs. If it is not needed it is stored as fat.
Digested fibre assists in the digestion of other foods by absorbing and holding water and speeding up the removal of waste by providing bulk for the muscles in the digestive system to push against.
Once carbohydrates are digested they are absorbed into the bloodstream to be made available to cells. Carbohydrates are needed for energy while a small amount is needed to make cells.