Plant stomata (singular: stoma) are small pores found on the surfaces of leaves and stems, playing a crucial role in gas exchange and water regulation.
_Structure:_
A stoma consists of:
1. _Guard cells_: Two specialized cells that surround the pore. 2. _Pore_: The small opening between the guard cells. 3. _Subsidiary cells_: Cells surrounding the guard cells.
_Functions:_
1. _Gas exchange_: Stomata allow for the exchange of gases, including: - Carbon dioxide (CO2) uptake for photosynthesis. - Oxygen (O2) release as a byproduct of photosynthesis. 2. _Water regulation_: Stomata help regulate water loss through transpiration. 3. _Temperature regulation_: Stomata can influence leaf temperature. s?
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