Taking food into the body; takes place in the mouth
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Digestion
Breaking down the food into small chemical units; occurs in the stomach and small intestine
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Absorption
The chemical units pass into the blood and are carried to the liver; occurs in the small intestine
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Metabolism
The chemical units are converted into energy for use by all the organs of the body; occurs mainly in the liver
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Excretion
The removal of any removable indigestible material
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Mechanical Digestion
Where large pieces of food are ingested and physically broken down into smaller pieces
Via mastication (chewing) or peristalsis (muscles in the digestive system constrict and relax)
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Chemical Digestion
Where larger molecules of food are broken down into smaller molecules by enzymes, acid and bile
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Heterotrophic
(Animals) Obtaining the nutrients needed to survive by eating plants and/or other animals
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Nutrients
Substances that provide nourishment essential for the maintenece of llife and for growth.
There are 7 groups of nutrients: Proteins, Carbohydrates, Lipids (fats), Vitamins, Minerals, Fibre and Water
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Monogastric Digestion
Simple, single chambered stomach
i.e. dogs, cats, pigs, hedgehogs, humans etc
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Small Intestine
Main site of enzyme digestion
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Other cards in this set
Card 2
Front
Breaking down the food into small chemical units; occurs in the stomach and small intestine
Back
Digestion
Card 3
Front
The chemical units pass into the blood and are carried to the liver; occurs in the small intestine
Back
Card 4
Front
The chemical units are converted into energy for use by all the organs of the body; occurs mainly in the liver
Back
Card 5
Front
The removal of any removable indigestible material
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