Leaf | Definition, Parts, & Function | Britannica
2024年10月24日 · The main function of a leaf is to produce food for the plant by photosynthesis. Chlorophyll, the substance that gives plants their characteristic green colour, absorbs light energy. The internal structure of the leaf is protected by the leaf epidermis, which is continuous with the stem epidermis.
Parts of a Leaf With Their Structure and Functions
2023年2月2日 · A typical leaf shows three main parts: 1) petiole, 2) leaf base, and 3) leaf blade or lamina, each performing specific functions. 1. Petiole. It is the stalk that connects a leaf to the stem of the plant, it is made of complex conducting tissues called vascular tissues. Functions. 2. …
30.8: Leaves - Leaf Structure and Arrangment - Biology LibreTexts
2024年11月23日 · Petioles, stipules, veins, and a midrib are all essential structures of a leaf. Within each leaf, the vascular tissue forms veins. The arrangement of veins in a leaf is called the venation pattern. Monocots and dicots differ in their patterns of venation.
Morphology of Leaf - Structure, Types, Parts & Modifications
The structure of a leaf is described below in detail : Parts of a Leaf. Generally, leaf base, petiole, and lamina, together form the main parts of a leaf. Leaf Base: This is the part where a leaf attaches to the stem. Leaf base has two small leaf-like structure called stipules.
Leaf Anatomy (Structure): Layers and Functions - Science Facts
2023年2月17日 · Learn the internal structure (anatomy) of a leaf. What are its different layers and their functions. Check out a labeled diagram.
30.10: Leaves - Leaf Structure, Function, and Adaptation
2024年11月23日 · Leaf Structure and Function. The outermost layer of the leaf is the epidermis. It consists of the upper and lower epidermis, which are present on either side of the leaf. Botanists call the upper side the adaxial surface (or adaxis) and the lower side the abaxial surface (or abaxis). The epidermis aids in the regulation of gas exchange.
Leaf - Wikipedia
Most leaves are flattened and have distinct upper (adaxial) and lower (abaxial) surfaces that differ in color, hairiness, the number of stomata (pores that intake and output gases), the amount and structure of epicuticular wax and other features.
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