Parts of the Plant: Leaves

Leaves vary in shape and size but share a common structure designed for photosynthesis. The leaf consists of an upper and lower epidermis, with stomata for gas exchange. The mesophyll, located between the epidermis layers, facilitates water and nutrient transport. Chloroplasts in the mesophyll contain chlorophyll, which captures sunlight to produce food through photosynthesis. Leaf adaptations, such as a waxy surface and spongy texture, optimize this process.

What are the main functions of the upper layer of a leaf?

Describe the role of guard cells in the leaf.

How does the structure of the mesophyll contribute to its function?

What is the significance of chlorophyll in the leaf?

Explain the process of photosynthesis and its importance to the plant.