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Epidermis of a Tulip showing Stomates

Found in: Observations and pictures

Stomates are the openings in a plant leaf, which allow for the diffusion of gasses.

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tulip epidermis 1

The stomates are interspersed in the lower epidermis of the leaf.

tulip epidermis

The nuclei are stained red, Chloroplasts are visible in the guard cells.” alt=”Epidermis of a Tulip showing Stomates

Stomates (or stomas) are openings on the underside of a leaf, which allow gases to pass in and out of the leaf. The pictures show these stomates as narrow gaps. Two guard cells control the size of the opening. The guard cells have chloroplasts, which are visible as dark dots in the cell. During the day the stomates open to allow carbon dioxide gas to enter the leaf. During night the stomates close to minimize the loss of water vapor from the leaf.

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