Cross Section of a Leaf
A leaf is a plant organism and is a collection of tissues in a regular
group. The major tissue systems present are: 1. The epidermis, which covers the upper and lower surfaces. 2. The mesophyll inside the leaf, which is rich in chloroplasts 3. The arrangement of veins; the vascular tissue. Leaves are typically covered by a solid network of xylem; which supply water for photosynthesis, and phloem, which remove the sugars produced by photosynthesis. Many leaves are covered in trichomes; small hairs which have a diverse range of structures and functions. |
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