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OBSERVATION OF TRANSVERSE SECTION OF DICOT STEM AND DICOT ROOT . Repeat the same procedure for the sunflower root, maize stem and maize root and prepare the slides. Observe each section under the microscope. (vi) Pith : Sometimes the metaxylem of all xylem patches meet in the centre, Primary structure of dicotyledonous root – Bean root. The hypodermis of sclerenchyma or collenchyma strengthens the stem and helps keep it upright. The root’s anatomy is different for monocot and dicot plants. Download PDF for free. The transverse section of stem, root and leaf of Amaranthus spinosus Linn. Photo about Cross-section Dicot, Monocot and Root of Plant Stem under the microscope for classroom education. The bundles are surrounded by large parenchyma in the cortex region. We would ascertain whether the given stem is a monocot stem or dicot stem by looking at some characteristics which are unique as to the particular type. Cortex: part of the root that protects the pith. The transverse section of the dicot root shows the following plan of arrangement of tissues from the periphery to the centre. While, monocot root contains xylem and phloem in another manner, forming a circle. Pearson The Biology Place Prentice Hall. Ø The components of cortex and stele are together known as Ground Tissue. Anatomy of monocot and dicot roots The embryo develops into an adult plant with roots, stem and leaves due to the activity of the apical meristem.. OBSERVATION OF TRANSVERSE SECTION OF DICOT STEM AND What is Dicot Root? Cross section of a root: axis of the plant which grows in the opposite direction from the stem, maintain the plant in place and absorbs nutrients. It shows the following plan of arrangement of tissues from the epi­dermis to the centre of the organ (Fig. Radial vascular bundle. The vascular system in dicots comprises of the two distinct regions cortex and stele, which are absent in the monocot stems. The transverse section of the dicot root shows the following plan of arrangement of tissues from the periphery to the centre. iii. Simulator Procedure (as performed through Online Labs) To select a particular transverse section of stem or root sample, click on the corresponding icon. The stem is a significant organ in a plant as it is responsible for the conduction of water, mineral salts, food, etc to different parts of the plant from the roots. The transverse section of the dicot root shows the following plan of arrangement of tissues from the periphery to the centre. It is protective in function. It helps to hold the leaves towards sunlight such that they can perform photosynthesis. 2. They may contain stomata for gaseous exchange. The outer walls are convex, thickened and cutinised. The monocot stem also has the single layered epidermis along with the thick cuti… Both the layers are composed of compactly arranged, barrel-shaped cells. i. Hence we will see them separately as. It is made up of single layer of parenchyma cells, its outer wall is covered with cuticle. Copyright © 2018-2021 BrainKart.com; All Rights Reserved. Comparison of Dicot and Monocot Stem. The difference between Dicot Stem and Dicot Root are :- in the former the outermost layer is called epidermis; the outer wall is covered with thick cuticle. The cells are compactly arranged and do not possess intercellular space. Woody Dicot Stem . The transverse section of the dicot root (Bean) shows the following plan of arrangement of tissues from the periphery to the centre. Plant Anatomy Examples. i.                     For more details about dicotyledonous root click here. Stomata and cuticle are absent. It possesses stomata and large number of multicellular hairs (trichomes). Ground tissued differentiated into cortex, Hence we will see them separately as. To select a particular transverse section of stem or root sample, click on the corresponding icon. Performance & security by Cloudflare, Please complete the security check to access. (Stem Anatomy vs Root Anatomy) Stem: Stem is the part of the plant which lies above the surface of the soil. 7.4 Secondary Growth in Dicot Stem and Dicot root. Click and drag the prepared slide of sample and place it on the stage of the compound microscope. To study the external features of root, stem, leaf and flowers of monocot and dicot plants. iv. The transverse section of a dicot stem reveals the following structures. Glycerine mounts of transverse section of dicot stem and root section of dicot root is known as ground tissue the. Or collenchyma strengthens the stem CAPTCHA proves you are a human and gives temporary. Tissued differentiated into cortex, endodermis, pericycle and pith composed of walled... For the internal root Dicotyledonous and monocotyledonous stem dicot stem Cross section Key Points PPT! 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