It is mostly absent if present; it is quite insignificant. In the old stem endodermis is not clear. Hypodermis is usually collenchymatous . _____ provides mechanical support to plants. Dicot stems have a well-defined epidermis with cuticle, a layer of dermis along with multicellular stem hair. The monocot stem also has the single layered epidermis along with the thick cuticle, although the epidermal hairs are absent in the case. Question 4. Normal secondary growth is absent in monocot root. It is represented by groups of sclerenchymatous cells situated just outside the vascular tissue. 2. Answer: Sclerenchyma. The internal structure of a dicot stem mainly consists of epidermis, hypodermis, cortex endodermis… The layers in monocot root from outside to inside are. Answer: Starch Sheath. It is made of parenchyma cells that store food and waste products. Dicot Stem: 1. The vascular bundles are scattered. Question 5. Present. In monocot roots, passage cells are absent in endodermis. Endodermis is the innermost layer of cortex, consisting of elongated cells which lack casparian thickenings. Internal Structure of Monocot Stem (Transverse Section, T.S.) Answered By . The barrel-shaped innermost layer of Dicot stem Endodermis is also called _____. Whereas in Dicot Root, Xylem and phloem are limited in numbers. Internally, the stem is differentiated into epidermis, hypodermis and ground tissue. The ‘starch sheath,’ or endodermis regulate hormone movement, as well as the movement of ions and water in and out of the plant’s vascular system. There are the difference between monocot stem and dicot stem, as well. Absent. Vascular bundles conjoint, collateral and open 11. But in dicot root, Pith is completely shattered. Thus, the correct answer is option A. Due to the presence of the lateral branches, circular stems are absent in monocots. Hypodermis. Question 6. Undifferentiated. The pith of the monocot root contains a large number of starch grains. What is Monocot Stem? In the Monocot Root, Xylem and phloem are numerous in number. In monocot stem, the endodermis is absent. The main difference of monocot stem from dicot stem is that, here in monocots the ground tissue is NOT differentiated into Cortex and Endodermis. Cortex is differentiated into hypodermis, general cortex and endodermis.Hypodermis is collenchymatous, general cortex is parenchymatous and often contains starch grains. The outermost layer is called epidermis; the outer wall is covered with thick cuticle. In dermis or monocot, trochomes are absent and cuticle is present whereas in Dicot has every. Dicot stem. 5. Dicot Stem. Bundle sheath is absent. Answer: Stele. The anatomy or internal structure of a monocot stem can be studied by a Transverse Section (T.S.) It has a single layer epidermis. Monocot stem. cortex, endodermis, pericycle and pith are absent. Anatomy of monocot root. Tulips, onions, lilies, and garlic are examples of monocot stems. Ground tissue is differentiated into hypodermis, cortex, endodermis, pericycle and pith 6. Collenchymatous. Pericycle: 8. Vascular bundles are wedge shaped, definite and arranged in one or two rings 9. taken through the internode of a monocot plant such as grass, bamboo, maize, Asparagus etc. No cavity in the vascular bundles 12. Always solid 7. epiblema, cortex, exodermis, endodermis, pericycle, vascular stand, pith. Epidermal hairs, Endodermis. Differentiated into cortex, endodermis, pericycle, pith and medullary rays. Ground tissue. 7. In monocot hypodermis is made-up of sclerenchymal cells whereas in Dicot it is made-up of cholenchymatous. Vascular System: 9. Vascular bundles are of similar size 8. 2. i.e. It also aids in storing plant starch. Sclerenchymatous. Epiblema The epidermis contains multicellular hairs and stomata here and there. Bundle sheath absent 10. All the tissues, inner to Endodermis constitute _____.

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