How is the internal anatomy of a stem different from that of a root?
Stem: Stem is the part of the plant which lies above the surface of the soil. It arises from the plumule of the embryo….(Stem Anatomy vs Root Anatomy)
| Sl. No. | Anatomy of Stem (Shoot) | Anatomy of Root |
|---|---|---|
| 4 | Stem hairs unicellular or multicellular. | Root hairs are always unicellular. |
What are the internal structures of a stem?
The stem is composed of three tissue systems that include the epidermis, vascular, and ground tissues, all of which are made from the simple cell types.. The xylem and phloem carry water and nutrients up and down the length of the stem and are arranged in distinct strands called vascular bundles.
What are the internal structures of roots?
The primary tissues of the root are, from outermost to innermost, the epidermis, the cortex, and the vascular cylinder. The epidermis is composed of thin-walled cells and is usually only one cell layer thick.
What is the inner layer of plant tissue of stems and roots?
The ground tissue towards the interior of the vascular tissue in a stem or root is known as pith, while the layer of tissue between the vascular tissue and the epidermis is known as the cortex.
How are roots and stems alike and different?
Similarity: Both stems and roots contain vascular tissues (xylem and phloem), the circulatory system of the plant. Similarity: Both stems and roots are able to initiate lateral growth: that is, to form “branches.” Difference: In stems, side branches arise from axillary buds.
What are the differences between roots stems and leaves?
Roots grow in length and width from primary and secondary meristem. Stems hold plants upright, bear leaves and other structures, and transport fluids between roots and leaves. Like roots, stems contain dermal, ground, and vascular tissues. Trees have woody stems covered with bark.
What is the anatomy of root?
Roots are composed of three concentric rings of tissues. These are vascular, ground & epidermis. This organization is illustrated by Selaginella which is a seedless plant. It has a solid core of xylem, surrounded by a ring of Phloem which is surrounded by ground tissue (Cortex).
What are the internal parts of the stem and their functions?
The stem divides into nodes and internodes. The nodes give rise to the leaves and hold the buds which grow into branches. The internodes separate two nodes. Internally, it contains three basic types of tissues: Dermal tissue, Ground tissue, and Vascular tissue all of which are made of simple cells.
What are internal roots?
The cortex is between the epidermis and the vascular tissue, whereas the pith lies between the vascular tissue and the center of the root. The inner portion of the root contains the vascular tissue (xylem and phloem). This area is called the stele.
What is Anatomy of root?
Parts of a root include the primary root, lateral roots, the apical meristem, a root cap, and root hairs. A cross sectional view of an herbaceous dicot root reveals the epidermis, cortex, endodermis, pericycle, and vascular tissues. Plant root systems are either a taproot system or a fibrous root system.
What is cortex of root?
A cortex is an outer layer of a stem or root in a plant, lying below the epidermis but outside of the vascular bundles. It is responsible for the transportation of materials into the central cylinder of the root through diffusion and may also be used for food storage in the form of starch.
What function do stem and roots share?
Seed plants have three main parts that serve specialized functions: roots, stems, and leaves. Roots help to anchor the plant in the ground as well as absorbing water and nutrients from the soil. Stems support the part of the plant that lies above ground and transport water and nutrients to all parts of the plant.