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Stoma
01
estoma, abertura
a mouth or mouthlike opening (especially one created by surgery on the surface of the body to create an opening to an internal organ)
02
estoma
a microscopic pore found on the surface of leaves and stems of plants, involved in gas exchange, including the uptake of carbon dioxide and release of oxygen and water vapor
stoma
n
Exemplo
Each stoma on the leaf's surface opens and closes to regulate the plant's water balance.
The stoma provides a pathway for gases to move in and out of the plant's tissues during photosynthesis.
Botanists study the structure of the stoma to understand how plants adapt to different climates.
The guard cells surrounding the stoma control its opening and closing in response to light and humidity.
