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Digestion/Nutrition
Terms relating to Digestion & Nutrition
| Term | Definition |
|---|---|
| Autotrophic [organism] | Capable of producing its own food |
| Heterotrophic [organism] | [organism] not capable of producing their own food i.e organism obtains food from other organisms |
| Omnivore | An animal that eats both plants and animals |
| Carnivore | An animal that eats only other animals |
| Herbivore | An animal that eats only plants |
| Digestion | The process of breaking down food into smaller, soluble molecules |
| Ingestion | The taking of food into the body (through the mouth ) |
| Absorption | The passing of small soluble molecules into the bloodstream ( from the digestive tract) |
| Egestion | The removal of unabsorbed material from the body |
| Mechanical digestion | Breakdown of food into smaller particles by physical means |
| Chemical digestion | Breakdown of food molecules by chemical means |
| Peristalsis | Rhythmic muscular contraction and relaxation in the wall of the alimentary canal causing the food to move along the canal |
| Dental formula | The number of each type of tooth in the upper and lower jaw on one side of the mouth |
| Symbiosis | A relationship between 2 organisms of different species where both partners benefit |