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Vacuole in Biological Definition

Plasmolysis

... membrane peeling off of the cell wall and the vacuole collapsing. Plasmolysis occurs when a plant ... permeable plasma membrane . The large vacuole in the center of the cell originally contains a ... solution on the other side of the membrane. The vacuole thus loses water and becomes smaller. The space ...

Vacuole

... relative cell size. The cavity that is the vacuole is considered nonprotoplasmic and the contents ... 2 Vacuoles in plant cells: the central vacuole 3 Vacuoles in budding yeast cells 4 ... by the cell for digestion . A contractile vacuole is used to pump excess water out of the cell to ...

Osmoregulation

... in protoctists and animals Amoeba makes us of a contractile vacuole to collect excretory waste, such as ammonia , from the intracellular ... osmotic action pushes water from the environment into the cytoplasm, the vacuole moves to the surface and disposes the contents into the environment. ...

Cytosol

... In eukaryotes , the cytosol contains the cell organelles . In plants, the amount of cytosol can be reduced due to the large tonoplast (central vacuole ) that takes up most of the cell interior volume. The cytosol is not a "soup" with free-floating particles, but is highly organized on the ...

Eukaryote

... prey. In multicellular organisms, hormones are often produced in vesicles. In higher plants, most of a cell's volume is taken up by a central vacuole or tonoplast, which maintains its osmotic pressure. Mitochondria and plastids Mitochondria are organelles found in nearly all eukaryotes. ...

Organelle

... centriole endoplasmic reticulum golgi apparatus lysosome myofibril plastids nucleus peroxisome ribosome vacuole vesicle melanosome Other related structures: flagellum cytosol endomembrane system nucleosome microtubule ...
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