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  2. Semipermeable membrane - Wikipedia

    en.wikipedia.org/wiki/Semipermeable_membrane

    When the solutes around a cell become more or less concentrated, osmotic pressure causes water to flow into or out of the cell to equilibrate. [8] This osmotic stress inhibits cellular functions that depend on the activity of water in the cell, such as the functioning of its DNA and protein systems and proper assembly of its plasma membrane. [9]

  3. Osmosis - Wikipedia

    en.wikipedia.org/wiki/Osmosis

    The process of osmosis over a semipermeable membrane.The blue dots represent particles driving the osmotic gradient. Osmosis (/ ɒ z ˈ m oʊ s ɪ s /, US also / ɒ s-/) [1] is the spontaneous net movement or diffusion of solvent molecules through a selectively-permeable membrane from a region of high water potential (region of lower solute concentration) to a region of low water potential ...

  4. Plasmolysis - Wikipedia

    en.wikipedia.org/wiki/Plasmolysis

    A plant cell in hypotonic solution will absorb water by endosmosis, so that the increased volume of water in the cell will increase pressure, making the protoplasm push against the cell wall, a condition known as turgor. Turgor makes plant cells push against each other in the same way and is the main line method of support in non-woody plant ...

  5. Onion epidermal cell - Wikipedia

    en.wikipedia.org/wiki/Onion_epidermal_cell

    The clear epidermal cells exist in a single layer and do not contain chloroplasts, because the onion fruiting body (bulb) is used for storing energy, not photosynthesis. [3] Each plant cell has a cell wall, cell membrane, cytoplasm, nucleus, and a large vacuole. The nucleus is present at the periphery of the cytoplasm.

  6. File:Osmotic pressure on blood cells diagram.svg - Wikipedia

    en.wikipedia.org/wiki/File:Osmotic_pressure_on...

    Biology, Answering the Big Questions of Life/Osmosis lab; Biology, Answering the Big Questions of Life/osmosis; Structural Biochemistry/Membrane Proteins/Passive Transport; Structural Biochemistry/Volume 6; Usage on es.wikipedia.org Transporte pasivo; Tonicidad (biología) Usage on es.wikibooks.org Transporte pasivo de solutos; Usage on et ...

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  9. Pressure-retarded osmosis - Wikipedia

    en.wikipedia.org/wiki/Pressure-retarded_osmosis

    Pressure retarded osmosis (PRO) is a technique to separate a solvent (for example, fresh water) from a solution that is more concentrated (e.g. sea water) and also pressurized. A semipermeable membrane allows the solvent to pass to the concentrated solution side by osmosis . [ 1 ]