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- Amoeba
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- Freshwater
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- Contractile vacuole
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- Gets rid of any excess water to prevent cell bursting
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- Osmoregulation
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- Maintaining water balance in the organism
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- Its cytoplasm is more concentrated than the freshwater it lives in
- So water is constantly entering by osmosis
- If amoeba did not have a contractile vacuole, the cell would burst
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- Movement
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- Digestion of food
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- The pseudopodia surround and engulf its prey
- Digestive enzymes are secreted into the vacuole that is created
- Food is then stored in this vacuole - hence the name “food vacuole”
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- Eukaryotic