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Why do Flowers Wilt?. Osmosis explains it all!. Plasmolysis the loss of water from a cell by osmosis hypertonic solutions plants in air or dry soil.

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plasmolysis the loss of water from a cell by osmosis hypertonic solutions plants in air or dry soil
Plasmolysisthe loss of water from a cell by osmosishypertonic solutionsplants in air or dry soil
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The pressure against the cell wall is called turgor pressure. A plant that has plenty of water will have high tugor pressure and will stand upright.. A plant that lacks water will have low turgor pressure and will wilt.

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Turgor pressure is the cause of rigidity in living plant tissue. It causes the cell walls to stiffen similar to the inflating of a pneumatic tire when you pump the air.