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VACUOLES
Some animals cells may have one to a few small fluid filled vacuoles.. Plants cells in general possess one or a few large vacuoles. Vacuoles of animals cells arise from golgi complex and are hence a part of the cytoplasmic endomembrane system . Obviously, these are bound by the same trilaminar units membrane these serve for storage and transport of dissolved nutritive secretory excretoty substances . and for the maintenance of an intracellular turgor pressure some freshwater animals cells possess one two or a few contractile vacuoles for osmoregulation such a vacuole is bound by a simple and delicate condensation membrane different from typical unit membrane.
How have prokaryotic cells given origin to aerobic eukaryotic cells and to photosynthetic aerobic eukaryotic cells? As per to the most accepted hypothesis aerobic eukaryotic ce
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