Definition for Guard cell
From Biology Forums Dictionary
A specialized plant cell that allows epidermal pores (stomata) to close when conditions are too dry and open under moist conditions, allowing the entry of CO2 needed for photosynthesis.
From Biology Forums Dictionary
A specialized plant cell that allows epidermal pores (stomata) to close when conditions are too dry and open under moist conditions, allowing the entry of CO2 needed for photosynthesis.