Tea leaf, light micrograph

Tea leaf, light micrograph

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Credit: DR KEITH WHEELER/SCIENCE PHOTO LIBRARY

Caption: Tea leaf. Light micrograph of a cross-section through a tea (Camellia sinensis) leaf. The upper and lower epidermis on the surfaces of the leaf are blue. Under the upper epidermis are palisade cells (brown), which contain chloroplasts, the site of photosynthesis. Beneath this a spongy mesophyll layer with large spaces between the cells. At bottom left, a stoma (pore) is seen. Stomata allow gases and water to enter and leave the plant. Magnification: x230 when printed 10 centimetres wide.

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Keywords: biological, biology, botanical, botany, camellia sinensis, cells, chloroplasts, choroplast, cross section, cross-section, epidermis, flora, leaf, light micrograph, light microscope, mesophyte, nature, palisade cell, phloem, plant, plant anatomy, pore, pores, sectioned, stoma, stomata, tea, transverse section, vascular bundle, xylem

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