What is the important characteristic of meristematic tissue?
The characteristics of meristematic tissues are as follows:
- They are living and contain undifferentiated mass of rapidly dividing cells.
- The tissue is made up of cells that shows totipotency.
- The shape of cells is spherical, polygonal or rectangular.
- The cells remain perpetually embryonic (immature) and totally unspecialized.
- Nucleus is large and present either in interphase or in subphases of divisions.
What happens to the cells formed by meristematic tissue?
The characteristics of meristematic tissue are as follows:
- The cells of these tissues are commonly called meristems.
- The meristematic tissue has the quality of self-renewal. ...
- They have very small and few vacuoles.
- The meristematic tissue is living and thin-walled.
- The protoplasm of the cells is very dense.
- The meristematic tissues heal the wounds of an injured plant.
What does meristematic mean?
Meristematic meaning. Of or pertaining to the meristem.
What kinds of tissue can a meristem cell become?
They can develop to become one of three primary meristems: the protoderm, ground meristem, or procambium. The protoderm will go on to form the epidermal tissues of the plant; the ground meristem will form the cortext and pith of the plant; and the procambium will become xylem and phloem, the vascular tissues of the plant.
What is the meaning of meristematic tissues?
Definition of meristem : a formative plant tissue usually made up of small cells capable of dividing indefinitely and giving rise to similar cells or to cells that differentiate to produce the definitive tissues and organs.
What is meristematic tissue for kids?
A meristem is a tissue in plants made of dividing cells. They are in parts of the plant where growth can take place. Plant cells which are differentiated generally cannot divide or produce cells of a different type. Therefore, cell division in the meristem is necessary to get new cells.
What do you mean by meristematic tissue class 9?
Meristematic tissues are the cells or groups of cells that have the ability to divide. These cells divide continuously and thus helps in increasing the length and thickness of the plant.
Which best describes meristematic tissue?
Meristematic tissue is growth tissue and the location of most cell division. It is known as undifferentiated tissue because cells in the meristematic tissue will eventually become vascular, ground, or dermal tissue. Plants generally grow where meristematic tissue is present.
What is meristematic plant?
Plant meristems are centers of mitotic cell division, and are composed of a group of undifferentiated self-renewing stem cells from which most plant structures arise. Meristematic cells are also responsible for keeping the plant growing.
How do you say meristematic?
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What is meristematic tissue class 8?
“Meristematic tissue is the plant tissue that has the ability to divide actively throughout its life.”
What are meristematic tissues Class 7?
Answer: Meristematic tissues are the plant tissues which are made up of actively dividing cells. These tissues actively divide and lead to the growth of the plant body. They are found at the growth points of the plant like tips of root, stem and branches etc.
What are meristems Class 11?
Meristems are tissues that contains undifferentiated or meristematic cells. These are found in the plant part like stem and root tip where growth takes place.
Where is meristematic tissue in plants?
Meristems are classified by their location in the plant as apical (located at root and shoot tips), lateral (in the vascular and cork cambia), and intercalary (at internodes, or stem regions between the places at which leaves attach, and leaf bases, especially of certain monocotyledons—e.g., grasses).
What is the other name of meristematic tissue?
Supplement. A meristem is comprised of indeterminate, actively dividing cells that give rise to differentiated tissues such as epidermis, trichomes, phellem, and vascular tissues. The meristem (also called meristematic tissue) is responsible for the growth of plants. There are many ways to classify meristematic tissues ...
Why is meristematic tissue so important to a plant?
Primary meristematic tissue helps the plant increase in length or vertical growth, meaning it helps the plant grow up toward the sun and down into the soil. Secondary meristematic tissue helps the plant increase the girth or lateral growth of its stems, branches, and roots.
1. Define Meristematic Tissue?
A plant tissue that has the power to divide itself actively throughout its life is called a Meristematic Tissue.
2. Who discovered Meristematic Tissue?
The term meristem was coined by Carl Wilhelm von Nägeli.
3. What are the characteristics of Meristematic Tissue?
The characteristics of meristematic tissue are the following - The cells of these tissues are known as Meristems It has the quality of self-renewal...
4. What are the two types of Meristematic Tissue?
The meristematic tissue is of two types - On the basis of their position On the basis of their function
5. What is an Intercalary Meristem?
An intercalary meristem is located within the leaves and internodes at the intercalary position. These help to increase the length of the internode...
6. Explain the characteristics of Meristematic Tissue?
Meristematic tissue has the following characteristics:Meristems are the cells that make up these tissues.It has the ability to self-renew because w...
7. List of the uses of Meristematic Tissue?
Meristematic tissues have the following characteristics:They're alive, and they're made up of an undifferentiated swarm of rapidly dividing cells.T...
8. What is the Meristematic tissue function?
Functions of Meristematic Tissue:They are the plant's actively dividing and rapidly dividing tissues, resulting in endless expansion.The plant's pr...
9. Explain the formation of Meristematic tissue on the basis of Function?
ProtodermThe epidermis is the outermost layer of plant tissue.It safeguards the plants against mechanical shocks.ProcambiumIt is the most inner tis...
What are the characteristics of meristematic tissue?
It has the quality of self-renewal as every time the cell divides, one cell remains just like the parent cell and the others form specialized structures. They have very small and few vacuoles. The meristematic tissues are living and thin-walled. The protoplasm of the cells is very dense.
What is the apical meristem?
Apical Meristem. These are present at the tips of the roots and shoots and help in the increase in height of the plants. Various cell divisions facilitate the growth of the cells in the roots and shoots. and help in cellular enlargement.
What tissue divides itself to make specialized structures?
The cells of the meristematic tissue have the capability to divide itself actively to make specialized structures like buds of leaves and flowers, tips of roots and shoots, etc. These cells help to increase the length and bulkiness of the plant.
What is a plant tissue that has the power to divide itself actively throughout its life called?
Meristematic Tissue Definition. A plant tissue that has the power to divide itself actively throughout its life is called a Meristematic Tissue.
Where is the intercalary meristem located?
Intercalary Meristem. It is located within the leaves and internodes at the intercalary position. These help to increase the length of the internode. It is in a neighbourhood with the grass, monocots, and pines. It is a part of apical meristem and adds to the peak of the plant.
What is the place where cells exist called?
They possess a large nucleus devoid of the vacuole. The cells have no intercellular space. The place where these cells exist is called Meristem.
What are the characteristics of meristematic tissue?
Cells within meristematic tissues have special characteristics that make them unique when compared to cells in mature, specialized plant tissue. Cells within meristematic tissue are self-renewing, meaning that every time they divide, one new cell remains meristematic, while the second heads off to become a programmed or specialized mature cell.
Where is the primary meristematic tissue located?
The intercalary nodes are located between areas of mature growth, kind of like the joint region on a plant. And in dicots, or plants with two seed leaves, primary meristematic tissues are found in apical regions --the tips of roots, shoots, and leaf and flower buds.
What are the two types of meristematic tissue?
Based on its location in a plant, meristematic tissues fall into two categories: primary and secondary. Both types produce new cells through mitotic division, or the splitting of the cell in two. However, the growth pattern they produce differs. Primary meristematic tissue helps the plant increase in length or vertical growth, meaning it helps the plant grow up toward the sun and down into the soil. Secondary meristematic tissue helps the plant increase the girth or lateral growth of its stems, branches, and roots. Secondary meristematic growth is also responsible for producing the bark on woody trees.
What is the outer layer of wood on a tree?
Secondary meristematic tissues are found in all woody plants. These tissues lead to the production of cambium, which is the outer layer of wood on trees that can be visually seen when you cut a tree down and look at the cross-section.
What is a meristematic tissue?
A meristematic tissue is defined as an undifferentiated mass of cells that are totipotent and undergoes continuous cell division. They are mainly responsible for indefinite growth and tissue repair in a plant body.
What are the three types of meristematic tissue?
The meristematic tissue is classified into the following three types on the basis of their functions: i) Protoderm: It forms the outermost portion of the primary meristem found at the apex of the stem and root. It develops into epidermis. ii) Procambium: It develops into primary vascular tissues.
What are the two main types of tissues in plants?
The plant body is made up of various kinds of tissues that can be broadly classified into two main types, i.e., meristematic tissues and permanent tissues . The meristematic tissues are undifferentiated cells that undergo rapid cell division to form new cells, which when differentiated give rise to permanent tissues.
What kind of tissue is present in the root and shoot apices of a plant?
Meristematic Tissues: Plants show indefinite growth. But why does a plant show indefinite growth? Which kind of tissue is present in the root and shoot apices of a plant? The answer to all these questions is meristematic tissue. The plant body is made up of various kinds of tissues that can be broadly classified into two main types, i.e., meristematic tissues and permanent tissues. The meristematic tissues are undifferentiated cells that undergo rapid cell division to form new cells, which when differentiated give rise to permanent tissues. Read this article to learn about the definition of meristematic tissu e, its characteristics, classification and much more.
What is the primary meristem?
Primary meristems are responsible for the primary growth (elongation) of the plant. The cells of the meristematic tissues undergo differentiation to form permanent tissues.
Where are meristematic cells found?
The meristematic cells can be called the first cells of the plant which are mainly found at the tips and lateral sides of plants.
What is the shape of a cell?
The tissue is made up of cells that shows totipotency. The shape of cells is spherical, polygonal or rectangular. The cells remain perpetually embryonic (immature) and totally unspecialized. Nucleus is large and present either in interphase or in subphases of divisions.
Introduction
Meristematic tissue is any plant tissue that consists of undifferentiated cells that can undergo rapid cell division. These rapidly growing tissues are found at the tips or apices of plant organs. They are responsible for producing new cells and tissues required by growing plants, such as buds, roots, leaves, and flowers.
Types of Meristematic Tissue
Meristematic tissues are characterized by localized regions of high cell division rates. In vascular plants, they include:
What are Induced Meristematic Tissues?
Induced meristematic tissues are plant organs that have meristematic cells. These tissues are formed through artificial treatment. The new tissues formed by this treatment are not genetically identical to the original tissue. Examples of Induced meristematic procedures are:
Apical Dominance Explained
Apical dominance is a form of plant control in which the shoot tip determines the growth of shoots and roots.
Summary
Meristematic tissues are the plant structures that have cells that can divide to produce more plant parts. They are found in the roots, stems, and leaves of plants. These tissues allow for growth and adaptation to respond to changes in an environment or other stimuli such as damage caused by pests.
What is a meristematic tissue?
Meristematic tissues, or simply meristems, are tissues in which the cells remain forever young and divide actively throughout the life of the plant. When a meristematic cell divides in two, the new cell that remains in the meristem is called an initial, the other the derivative. As new cells are added by repeated mitotic ...
What are the primary meristems?
These are the primary meristems, called sometimes the transitional meristems: the protoderm, the procambium, and the ground meristem.
What are the four types of meristems in plants?
Meristematic cells are generally small and cuboidal with large nuclei, small vacuoles, and thin walls. A plant has four kinds of meristems: the apical meristem and three kinds of lateral—vascular cambium, cork cambium, and intercalary meristem.
What is the vascular cambium?
Vascular cambium. Some plants grow in diameter by producing new tissues laterally from a cylinder of tissue called the vascular cambium, which extends throughout the length of the plant from the tips of the shoots to the tips of the roots. It is present in allperennial and in some annual plants. Tissues produced by cell divisions ...
Where are the apical meristems located?
Apical meristems. These are located at opposite ends of the plant axis in the tips of roots and shoots. Cell divisions and subsequent cellular enlargement in these areas lengthen the above and below ground parts of the plant. The meristems also influence the shapes of the mature plants since the patterns for subsequent growth are laid down in ...
Do monocots have lateral meristems?
Cell divisions in this tissue push the stem upward. Grasses and other monocots have no lateral meristems so any lateral increase in size is the result of primary tissue cell enlargement, not cell divisions.
What is Meristem?
Meristems in plants are the center of active mitotic cell division where plant growth occurs. Mitotic cell division happens when a parent cell divides into two identical daughter cells. Meristematic tissues are groups of densely packed cells with thin cell walls.
Meristematic Function
Meristem comes from the Greek word meristos, which means divisible. The main function of meristematic tissue is to begin the process of new cell growth. Plant meristematic tissue is also responsible for the formation of post-embryonic organs (organogenesis). Meristematic cells are often compared to stem cells in animals.
Meristematic Tissue
The role and function of meristematic tissue are dependent on its location on the plant.
Meaning of The Term
Characteristics of Meristematic Plant Tissue
- The cells within the meristem have some unique characteristics: 1. Cells within the meristematic tissues are self-renewing, so that each time they divide, one cell remains identical to the parent while the other can specialize and become part of another plant structure. The meristematic tissue is therefore self-sustaining. 2. While other plant tissues can be made of both living and de…
Types of Meristematic Tissue
- There are three types of meristematic tissues, categorized according to where they appear in the plant: "apical" (at the tips), "intercalary"(at the middle), and "lateral" (at the sides). The apical meristematic tissues are also known as "primary meristematic tissues," because these are what form the main body of the plant, allowing for vertical growth of stems, shoots, and roots. The pri…
Meristematic Tissue Characteristics
Meristematic Tissue Classification
Classification Based on Origin
Classification Based on Position
Classification Based on Functions
Meristematic Tissue Functions
Summary
- Meristematic tissues are those tissues that are undifferentiated and divide actively and rapidly throughout the whole life of the plant. The meristematic cells can be called the first cells of the plant which are mainly found at the tips and lateral sides of plants. They can be broadly classified into primary and secondary meristems depending on th...
FAQs on Meristematic Tissues