Iris stomata, light micrograph

Iris stomata, light micrograph

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Credit: MAREK MIS/SCIENCE PHOTO LIBRARY

Caption: Polarised light micrograph of Iris sp. plant tissue showing the stomata (round). Stomata are pores that open and close in order to regulate gas exchange in a plant. The aperture of each stoma is controlled by a pair of specialised cells known as guard cells (sausage-shaped). These cells swell to close the pore and shrink to open it. Stomata are found mainly on the underside of leaves. Magnification: x100 when printed 10 centimetres wide.

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Keywords: anatomical, anatomy, angiosperm, angiosperms, biological, biology, botanical, botany, cell, cells, flora, gas exchange, guard cell, iris sp., light micrograph, light microscope, many, micrograph, microscopy, multiple, nature, no-one, nobody, photomicrography, plant, plants, polarised light, pore, pores, stoma, stomata, structure, structures, tissue, transpiration

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