Write the components and functions of plant tissue System.
Answers
Answer:
Functions of plant tissues
Help provide mechanical strength to organs. They help in providing the elasticity and flexibility to the organs. They divide to produce new cells and help in the growth of the plants. They help in various cellular metabolisms like photosynthesis, regeneration, respiration, etc.
The components and functions of the tissue systems are summarized below: Epidermal Tissue System: ...
It is divided into following parts:
(i) Hypodermis: ...
(ii) General Cortex: ...
(iii) Endodermis: ...
(iv) Pericycle: ...
(v) Pith: ...
(i) Radial Bundles:
Components and Functions of Plant tissue system
Explanation:
Components of Plant tissue system
- Classification of plant tissue is meristematic tissue and permanent tissue.
Meristematic tissue
- Meristematic tissue has a group of cells that are capable to divide. These tissues are of cuboidal, small, densely packed cells that keep dividing to form new cells. As they mature, these tissues can stretch, enlarge, and differentiate into other types of tissues.
- Meristematic tissues are classified into three types based on their location
Apical meristem:
Apical meristems are at the growing tips of stems and roots. The apical meristem extends the plant's length.
Lateral meristem:
The radial portion of the stem or root contains lateral meristem. The thickness of the plant is increased by lateral meristem.
Intercalary meristem:
Intercalary meristems are present at internodes or the base of leaves. The Intercalary meristem increases the internode size.
Permanent tissue:
Permanent tissue has lost its ability to divide and is derived from meristematic tissues. They've reached their full potential. Permanent tissue is divided into Simple Permanent tissue and Complex Permanent tissue.
Simple permanent tissue:
Simple permanent tissue is classified into the parenchyma, collenchyma, and Sclerenchyma
Parenchyma
The soft tissues of a plant, such as the roots, stems, leaves, and flowers, are known as parenchyma. This tissue's cells are loosely packed and have a lot of intercellular space. At the center of every cell is a vacuole. Storage, photosynthesis, and helping the plant float in water are all functions of parenchyma tissues.
Collenchyma
Collenchyma cells have thicker cell walls and are similar to parenchyma cells. Their role is to provide mechanical support in plants' places like the leaf's petiole.
Sclerenchyma
This tissue's cells are no longer alive. They have rigid secondary walls that are thick and lignified. Their main job is to give the plant's parts strength and support.
Complex permanent tissue:
Complex permanent tissues are made up of multiple cell types. These various types of cells work together to accomplish a task. Xylem and phloem are complex permanent tissues that are found in plant vascular bundles.
Xylem
It aids in the movement of dissolved substances and water throughout the plant. Vessels, tracheids, xylem fibers, and xylem parenchyma are all components of the xylem. Lignin, which provides structural support to the plant, is found in xylem fibers and Tracheids.
Phloem
This tissue aids in the transport of food throughout the plant. Phloem components include phloem fibers, sieve tubes, phloem parenchyma, and companion cells.
Plant tissues perform a variety of functions depending on their structure and location.
- Assist in providing mechanical strength to organs.
- They aid in the elasticity and flexibility of the organs.
- They allow the tissues in various parts of a plant, such as a leaf, stem, and branches, to bend easily without causing damage to the plant.
- The xylem and phloem tissues aid in the transport of material throughout the plant.
- They divide to produce new cells and aid in plant growth.
- They aid in a variety of cellular metabolisms such as photosynthesis, regeneration, respiration, and so on.