Why do meristematic tissues have dense cytoplasm

Meristematic cells have a prominent nucleus, dense cytoplasm and lack vacuoles and are because: … As vacuoles possess cell sap and provide rigidity and turgidity to the cell. This might pose a problem for cell division. Due to this reason, meristematic cells lack vacuole.

Why do meristematic tissues have dense cytoplasm Class 9?

Meristematic cells are the cells that divide frequently. These cells need dense cytoplasm and thin cell walls. Meristematic cells have immense potential to divide. For this purpose, they have dense cytoplasm and thin cell walls.

Does meristematic tissue have thin cytoplasm?

The cells comprising meristematic tissues are small and circular, with thin cell walls and a dense cytoplasm. Since these cells are continuously dividing, they lack vacuoles and have a large and prominent nucleus. have thin cellulosic wall, no vacuoles, dense cytoplasm, and prominent nuclei.

Does meristematic tissues have dense cytoplasm?

Meristematic cells have a prominent nucleus and dense cytoplasm but they lack vacuole.

Which type of tissue has dense cytoplasm?

Parenchyma is a type of simple tissue, having cells that are characterised by dense cytoplasm, thin cellulose walls, prominent nuclei and lack vacuoles.

Why do meristematic tissue cells have a dense cytoplasm and a prominent nucleus?

Meristematic cells have dense cytoplasm and prominent nuclei because they are actively dividing cells ,so they require cytoplasm and nucleus to control their activities. Vacuole has the function of storing food ,but in meristematic tissue ,cells keep on dividing and their is no need of storing anything.

Why meristematic tissues have prominent nucleus and dense cytoplasm?

Meristematic cells have a prominent nucleus, dense cytoplasm and lack vacuoles and are because: these cells do not store food material or waste materials. Hence they lack vacuole. As vacuoles possess cell sap and provide rigidity and turgidity to the cell.

Why does meristematic tissue lack intercellular spaces?

Meristematic cells do not need to store these nutrients as they have compact shape. … Intercellular spaces are absent in sclerenchymatous tissues because they have a cementing substance (known as lignin) around their cell membrane which makes them stiff and hard.

Why meristematic cells have prominent nucleus and dense cytoplasm but they lack vacuole?

a) Meristematic tissue cells are continuously dividing and they have a prominent nucleus and a dese cytoplasm. Since they are diving rigorously they need not store food or waste products hence they lack vacuoles.

Why do meristematic tissues lack vacuoles Meritnation?

Meristematic tissues are the type of tissue present in plants that divides continuously. To make the cell division easy the cells of meristematic tissues are small, very thin walled, and without any vacuoles. … As the cells of meristematic tissues are dividing fast there is nothing to store.

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Why is the cell wall of meristematic tissue thin?

The meristematic cells are small in size and bear a thin cell wall. They do not possess intercellular spaces and no or very small vacuoles are present.

Do meristematic tissues have thick walls?

Cell wall of meristematic tissue is thick.

What are the characteristics of meristematic tissue?

• 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.

Which of the following tissues have dense cytoplasm thin cellulose walls and prominent nuclei and lack vacuoles?

Cells of meristematic tissue are very active,they have dense cytoplasm, thin cellulose walls and prominent nuclei. They lack vacuoles.

What happens to the cells formed by meristematic tissue?

The cells formed by meristematic tissue take up a specific role and lose their ability to divide. As a result, they form a permanent tissue. This process of taking up a permanent shape, size and function is called differentiation.

Do meristematic tissues have vacuoles?

Meristematic cells have a prominent nucleus and dense cytoplasm but they lack vacuole.

What is the meaning of dense cytoplasm?

The fluid (gel) like substance inside the cell in which organelles are present is called the cytoplasm. When the contents of cytoplasm are closely compacted together, it is termed as dense cytoplasm.

Why the cells of meristematic tissue are very active?

Answer: Meristematic cells have a prominent nucleus and a dense cytoplasm but lack a vacuole, this is so because meristematic cells have an ability to divide and form new cell. Vacuoles have a function of storing food and other nutrients that a cell might need to survive.

What is present at the growing tips of stem and roots and increase its length?

Apical meristem is present at the growing tips of stems and roots and increases the length of the stem and the root.

Why does girth of stem increase?

Explanation: The increase in the girth of a stem or secondary growth takes place due to the presence of lateral meristem, cork cambium, and vascular cambium. Apical meristems are found on the apices / growing parts of a plant such as tips of shoots, roots, etc.

What tissue makes plants hard stiff?

Sclerenchyma is the tissue which makes the plant hard and stiff.

What are the difference between meristematic tissue and permanent tissue?

Meristematic tissue cells are either undifferentiated or incompletely differentiated, and they continue to divide and contribute to the growth of the plant. In contrast, permanent tissue consists of plant cells that are no longer actively dividing.

Which of the following is correct about meristematic tissue?

Answer : Meristematic tissue consists of cells which are not differentiated and which are cabable of cell division. It is found on those regions of the plant which grows.

What cells lack vacuoles and intercellular spaces?

The meristematic tissue in plants lack vacuole and intercellular space.

Why is it difficult to pull out the husk of coconut?

Walls of sclerenchyma are lignified, which make them thick. This tissue makes the plant hard and stiff. Coconut husk is very hard and is made of such thickened, lignified cells. Such cells make it very hard to pull out the coconut husk.

Which tissue have the prominent nucleus but do not have the vacuole?

Meristematic cells have a prominent nucleus and dense cytoplasm but they lack vacuole.

Which tissue has least intercellular space?

Tissue with least intercellular space is: Epithelial tissue.

Why are cell walls of meristematic tissue thin and why do they have only small vacuoles?

Meristematic cells divide frequently and give rise to new cells and hence they need dense cytoplasm and thin cell wall. Vacuoles causes hindrance in cell division as it is full of cell sap to provide turgidity and rigidity to the cell. … Meristematic cells do not need to store these nutrients as they have compact shape.

What is meristematic tissue describe various types of meristematic tissues in plants?

There are three primary meristems: the protoderm, which will become the epidermis; the ground meristem, which will form the ground tissues comprising parenchyma, collenchyma, and sclerenchyma cells; and the procambium, which will become the vascular tissues (xylem and phloem).

What is the main function of the meristematic tissue in plants?

Meristematic tissues are responsible for plant growth. They are present at the tips of roots,stem and branches. The cells present in these tissues constantly divide to produce new cells. The cells actively divide to produce new cells.

What is the meaning of prominent nucleus?

prominent nucleus means the nucleus which can be seen very easily through a microscope and is big in size . It is found in meristematic tissues in plant.