Stem | Description, Facts, & Types | Britannica
网页2024年9月3日 · Stem, in botany, the plant axis that bears buds and shoots with leaves and, at its basal end, roots. The stem conducts water, minerals, and food to other parts of the plant and may also store food or be photosynthetic itself. Learn more about the importance, types, and functions of plant stems.
Plant - Stem Structure, Function, Types | Britannica
网页2024年9月13日 · Plant - Stem Structure, Function, Types: A plant body consists of stems, leaves, roots, flowers, fruits, and seeds. Stems are usually the main axis of a plant, leaves act as the primary site of photosynthesis, and roots absorb water and nutrients. Flowers are modified shoots that have become differentiated for reproduction.
30.3: Stems - Stem Anatomy - Biology LibreTexts
网页2024年8月28日 · Stem Anatomy. The stem and other plant organs are primarily made from three simple cell types: parenchyma, collenchyma, and sclerenchyma cells. Parenchyma cells are the most common plant cells. They are found in the stem, the root, the inside of the leaf, and the pulp of the fruit.
Plant stem - Wikipedia
网页A stem is one of two main structural axes of a vascular plant, the other being the root. It supports leaves, flowers and fruits, transports water and dissolved substances between the roots and the shoots in the xylem and phloem, engages in photosynthesis, stores nutrients, and produces new living tissue. [1]
5.4: The Stem - Biology LibreTexts
网页2024年5月18日 · The stem is an axial organ of shoot. It has functions of support, transportation, photosynthesis, and storage. Stem has radial structure, no root hairs and grows continuously.
30.2: Stems - Functions of Stems - Biology LibreTexts
网页2023年10月31日 · Plant stems, whether above or below ground, are characterized by the presence of nodes and internodes. Nodes are points of attachment for leaves, aerial roots, and flowers. The stem region between two nodes is called an internode. The stalk that extends from the stem to the base of the leaf is the petiole.
Lesson Explainer: Structure of the Stem - Nagwa
网页Stems are long, stalk-like structures that form the main body of a plant. They usually rise above ground, though some stems can be found underground too! The stem helps to support the plant and allows it to move to access light and to transport essential substances to the different plant organs.
30.2 Stems - Biology - OpenStax
网页Describe the main function and basic structure of stems; Compare and contrast the roles of dermal tissue, vascular tissue, and ground tissue; Distinguish between primary growth and secondary growth in stems; Summarize the origin of annual rings; List and describe examples of modified stems
Plant Stem - Structure and Functions - BYJU'S
网页A stem is a structural axis that supports the flowers, fruits and leaves of a plant. They are often specialised for protection, support, photosynthesis and asexual reproduction. Here, let’s discuss the structure and functions of the plant stem.
Parts of a Stem With Their Structures and Functions - Science Facts
网页2023年2月2日 · A typical plant stem consists of eight distinct parts, containing six elements and two organs. The six elements are: 1) nodes , 2) internodes , 3) terminal or apical bud , 4) lateral or axillary bud , 5) petiole and 6) pedicel.
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