What are the internal parts of monocot stem?
Internal Structure of Monocot Stem
- Epidermis. It is the outermost layer made up of single layer of tightly packed parenchymatous cells with thick cuticle.
- Ground tissue.
- Vascular bundles.
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 differences in the internal structure of monocot and dicot stems?
The main difference between monocot stem and dicot stem is that monocot stem contains scattered vascular bundles across the stem whereas dicot stem contains vascular bundles arranged in the form of one or two rings. Monocot stem and dicot stem are the two types of stem structures in flowering plants.
What is the structure of monocot root?
In monocot roots, xylem and phloem tissue bundles are arranged in a circular fashion around the central pith, which consists of ground tissue (parenchyma). Monocot roots have a larger number of vascular structures than dicot roots.
What are the features of monocot stem?
Features of Monocotyledonous Stems:
- The vascular bundles are many.
- The stele is broken up into bundles.
- The endodermis is not found.
- The vascular bundles are collateral and closed.
- Leaf trace bundles are numerous.
- Each vascular bundle remains surrounded by a well developed sclerenchymatous sheath.
What is the function of monocot stem?
Function: The pericycle supports the root, protects its vascular structures, stores nutrients, and facilitates root growth. Pericycle cells can divide and give rise to lateral roots in both monocots and dicots.
What are the parts of external and internal stem structure?
Stem has three fundamental systems. These tissues systems are epidermis or dermal tissues, ground tissues and vascular tissues. It divides the ground tissue into an outer region called the cortex, and an internal region known as the pith.
What are A and B in internal structure of monocot root?
a) Pericycle: It is a single layer of thin walled cells. The lateral roots originate from this layer. b) Vascular tissues: It consists of many patches of xylem and phloem arranged radially. The xylem is exarch and polyarch.
How is the internal structure of a monocot stem studied?
The anatomy or internal structure of a monocot stem can be studied by a Transverse Section (T.S.) taken through the internode of a monocot plant such as grass, bamboo, maize, Asparagus etc. The main difference of monocot stem from dicot stem is that, here in monocots the ground tissue is NOT differentiated into Cortex and Endodermis.
What is the internal structure of a monocotyledon?
In this article we will discuss about the internal structure of monocot stem with reference to a typical monocotyledon, the maize stem, and carina scape. 1. Maize Stems (Figs. 150 & 151): It is as usual single-layered with cuticularised outer walls. II. Ground Tissues:
Where is the cotyledon located on a monocot stem?
Those plants whose seed contains only one cotyledon or embryonic leaf is known as simply monocot. Monocot stems have the majority of their vascular bundles near the exterior border of the stem. In this study focus on identifications of the internal structure of monocot stem.
Where are the phloem vessels located in a monocot stem?
The phloem in the monocot stem consists of sieve tubes and companion cells. Phloem parenchyma and phloem fibres are absent. The two metaxylem vessels are located at the upper two arms and one or two protoxylem vessels at the base.