Where is the xylem in a monocot root?
central pith
In monocot roots, xylem and phloem tissue bundles are arranged in a circular fashion around the central pith, which consists of ground tissue (parenchyma).
What type of xylem is present in monocot root?
In monocot roots, exarch is found within the polyarch condition i.e many protoxylem (12-20) alternating with phloem. So, the correct answer is, ‘Monocot root.
What is the shape of xylem in monocot stem?
Xylem: It is V or Y shaped, bearing two large metaxylem vessels with wider cavities and pitted thickening at the lateral arms. Few tracheids are present in between the metaxylem vessels.
How many xylem bundles are present in the monocot root?
In monocot root, vascular bundles are radial, closed with the exact condition of the xylem. There are a total eight bundles in each of xylem and phloem. When many strands of xylem are present, it is called polyarch condition, a characteristic feature of monocot root. B.
What is a pith monocot?
Pith. Located in the middle of monocot roots, the pith (or medulla) is composed of soft, spongy parenchyma cells with spaces between them. The pith is surrounded by a ring of vascular bundles, containing xylem and phloem.
Is there a pith in monocot root?
The monocot root is composed of an epidermis, cortex, endodermis, pericycle, xylem, phloem and a pith. Unlike dicot roots, a monocot root has a pith in the stele. It also contains vascular bundles that are composed of both xylem and phloem.
Which xylem element is not dead?
Xylem parenchyma is the only living component that is present in the xylem tissue. All the other tissues are dead when they are mature.
What is the structure of a monocot stem?
Anatomy of monocot stem The Monocot Stem has Vascular Bundles near the outside edge of Stem. Vascular Bundles are scattered in Parenchymatous ground Tissue. There is no pith region in Monocots. Dicot Stems have bundles in a ring surrounding Parenchyma cells in a pith region.
Are xylem bundles present in the roots?
Answer: yes, xylem bundles are also present in roots. in roots, xylem is exarch.
Which pith is absent?
Protostele is simplest and most primitive type of stele, in which, vascular cylinder consists of solid core of xylem surrounded by phloem, pericycle and endodermis. There is no pith.