Bid
CO2
Chlorophylls
Guard cells
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Answer:
Guard cells are cells surrounding each stoma. They help to regulate the rate of transpiration by opening and closing the stomata.
Explanation:
Guard cells are the kidney shaped cells that surround the stomata and are responsible for opening and closing of the stomatal pore. When potassium ions accumulate in the guard cells, they absorb water and become swollen or turgid. Due to their turgidity the stomatal pore opens up completely and transpiration occurs.
Photosynthesis in guard cells is essential for guard cell turgor production. Previous studies have shown that guard cells have low chlorophyll content.
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