* Osmosis is a passive process: Water movement across cell membranes is driven by differences in concentration, not by an active pump.
* Multiple structures are involved: Various cell structures work together to regulate water balance, including:
* Cell membrane: Acts as a semi-permeable barrier, allowing water to move across it.
* Vacuoles: In plants, large central vacuoles store water and contribute to turgor pressure.
* Contractile vacuoles: Found in some protists, these structures actively pump out excess water.
* Excretory organs: In multicellular organisms, specialized organs like kidneys (in mammals) or nephridia (in earthworms) remove excess water and waste products from the body.
Therefore, there isn't one single organelle that removes water from an organism solely due to osmosis. The process is more complex and involves the coordinated action of multiple structures.
