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Xylem: Pipe-like vessels present inside the roots, stem, branches and the leaves which form a continuous passage for water, minerals and other nutrients to reach the leaves from the root
Stomata: Tiny pores present on the underside of leaves which help in the exchange of gases. Stomata is bounded by two half-moon shaped guard cells. These guard cells regulate the opening & closing of stomata when there is enough light & water. These guard cells swells up and curve away from each other & stomata open this allows CO2 to enter the cells of the leaf.
Guard cells: These surround the stomata and regulate their opening and closing.
STOMATA