tightly packed cells that protect the leaf, cells contain many chloroplasts, most photosynthesis takes place here, loosely arranged cells with many air spaces for gases, transports food and water to and from the leaf (vascular bundle of xylem and phloem), an opening for gas exchange (stoma), prevents water loss (waxy layer), control the opening of the stomata (guard cells).

Leaf cross section functions

Tulostaulu

Visuaalinen tyyli

Vaihtoehdot

Vaihda mallia

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