Leaf - Wikipedia
A leaf (pl.: leaves) is a principal appendage of the stem of a vascular plant, [ 1 ] usually borne laterally aboveground and specialized for photosynthesis. Leaves are collectively called foliage, as in "autumn foliage", [ 2 ][ 3 ] while the leaves, stem, …
30.10: Leaves - Leaf Structure, Function, and Adaptation
Oct 31, 2023 · 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.
an tree leaf surface is called its indumentum or vesture. The surface cell layer on a leaf is the epidermis which is the primary outermost layer of cells which may generate a cuticle.
Science of Leaves: Anatomy, Arrangement, & Adaptations
Jul 12, 2023 · What is the Purpose of Plant Leaves? Photosynthesis. Transpiration. Guttation. Internal Leaf Structure. Waxy Cuticle. Upper Epidermis. Palisade Mesophyll. Spongy Mesophyll. Vascular Bundle. Lower Epidermis. Leaf Anatomy. Apex. Blade/Lamina. Margin. Veins. Midrib. Base. Petiole. Stipule. Leaf Type Arrangement. Simple Leaf. Compound Leaf.
Leaf Anatomy (Structure): Layers and Functions - Science Facts
Feb 17, 2023 · The structure of a leaf is specialized to trap sunlight and allow the exchange of gases such as intake of carbon dioxide and release of oxygen. They also contain vascular structures that help transport water from the roots into the cells.
Leaf | Definition, Parts, & Function | Britannica
Leaf, any usually flattened green outgrowth from the stem of a vascular plant. Leaves are the primary sites of photosynthesis and manufacture food for plants. They are an integral part of the stem system and can be modified into a variety of other plant organs.
35.5.3: Leaf Structure, Function, and Adaptation
Dec 17, 2021 · 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.
30.8: Leaves - Leaf Structure and Arrangment - Biology LibreTexts
Oct 31, 2023 · Each leaf typically has a leaf blade ( lamina ), stipules, a midrib, and a margin. Some leaves have a petiole, which attaches the leaf to the stem; leaves that do not have petioles are directly attached to the plant stem and are called sessile leaves.
Leaves - Biology Online Tutorial
Biology Tutorials > Plant Biology > Leaves. Leaves are the major photosynthetic organ of plants. Table of Contents. Leaves are highly efficient solar energy converters. They capture light energy and through the process of photosynthesis.
Leaf: Definition, Characteristics and Functions (With Diagram)
Leaf is a green, dissimilar exogenous lateral flattened outgrowth which is borne on the node of a stem or its branch and is specialised to perform photosynthesis. Typically it is a thin expanded green structure which bears a bud in its axil. The green colour of …