Homeostasis in Plants

Homeostasis in PlantsPlant Regulation Regulation and coordination systems in Plants are much simpler than in animals Homeostatic regulation of Plants seeks to: Maintain an adequate uptake of water and nutrients form soil into leaves Control stomatal opening so that water loss is minimised and carbon dioxide is maximised When Plants respond to environmental conditions such as high temperature or salinity, they are balancing several conflicting demandsRegulation of Extracellular Fluid The composition of extracellular fluids is not precisely regulated in Plants . Plants are fairly tolerant of changes in the solute concentration of the extracellular fluid providing the solute concentration is hypotonic to the solute concentration inside their cells. If the solute concentration of the extracellular fluid is hypertonic to the solute concentration of cytoplasm, water diffuses out of the cytoplasm, resulting in plasmolysis (shrinkage of the cytoplasm) and, potentially cell of Extracellular FluidGaseous Exchange In vascular Plants the rate of movement of water, carbon dioxide and oxygen between atmosphere and internal spaces is regulated by the degree of opening of Stomata are generally abundant on the surfaces of leaves, more commonly on the underside.

Plant Regulation Regulation and coordination systems in plants are much simpler than in animals Homeostatic regulation of plants seeks to: Maintain an adequate uptake of water and nutrients form soil into leaves Control stomatal opening so that water loss is minimised and carbon dioxide is maximised When plants respond to environmental conditions

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