Vacuole: Difference between revisions

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===Contraction===
===Contraction===
Protists, organisms without cell walls, that live in hypotonic media (freshwater species), as the ciliate Paramecium, have contractile vacuoles, which periodically excrete fluid.<ref name=sperelakis>{{cite book|editor=Sperelakis, Nicholas|author=Freedman, Jeffrey C|title=Cell Physiology Sourcebook:A Molecular Approach|location=San Diego, California|publisher=Academic Press|edition=3rd|chapter=4:Cell Membranes and Model Membranes|page=1044|isbn=0-12-656977-0}}</ref>
Protists, organisms without cell walls, that live in hypotonic media (freshwater species), as the ciliate Paramecium, have contractile vacuoles, which periodically excrete fluid.<ref name=sperelakis>{{cite book|editor=Sperelakis, Nicholas|author=Freedman, Jeffrey C|title=Cell Physiology Sourcebook:A Molecular Approach|location=San Diego, California|publisher=Academic Press|edition=3rd|chapter=61:Physiological Adaptations of Protists|page=1044|isbn=0-12-656977-0}}</ref>


===Pigmentation===
===Pigmentation===

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