Plant Structure and Function: Leaves

The video tutorial explains the classification of leaves into simple and compound types, highlighting examples like apple and palm trees. It details the structure of leaves, including the stalk, petiole, and leaf blade, and emphasizes their role in photosynthesis. The process of photosynthesis is described, focusing on how leaves convert light, carbon dioxide, and water into food and oxygen. The anatomy of a leaf is explored, covering the epidermis, cuticle, mesophil, palisade, and spongy layers. Finally, the video discusses gas exchange through stomata and the function of guard cells in regulating water vapor loss.

Explain the significance of stomata in leaves.

What happens to guard cells when a plant does not have enough water?