Does meristematic tissues have dense cytoplasm?

Last Update: April 20, 2022

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Asked by: Alyce Hand
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Meristematic cells have a prominent nucleus and dense cytoplasm but they lack vacuole.

Which type of tissue has dense cytoplasm?

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.

Why do meristems 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.

How is the cytoplasm of meristematic tissue?

Meristematic cells are thin-walled cells with rich cytoplasm and a big nucleus. Vacuoles are non-cytoplasmic areas separated from the cytoplasm by specific membranes. ... This explains why they lack vacuole and their respiration rate is also high.

What are the three types of permanent tissue?

Simple permanent tissues are again classified into three main types. They are parenchyma, collenchyma, and sclerenchyma.

Give reasons for (a) Meristematic cells have a prominent nucleus and dense cytoplasm

21 related questions found

What are the three types of meristematic tissue?

There are three types of meristematic tissues: apical (at the tips), intercalary or basal (in the middle), and lateral (at the sides).

What is permanent tissue?

: plant tissue that has completed its growth and differentiation and is usually incapable of meristematic activity.

Why are vacuoles absent in marriage Matic tissue?

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. Due to this reason, meristematic cells lack vacuole.

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 do you mean by 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.

Which of the following has dense cytoplasm?

Tapetum cells possess dense cytoplasm and generally have more than one nucleus.

Where are Meristematic tissue found?

Meristematic tissues are found in many locations, including near the tips of roots and stems (apical meristems), in the buds and nodes of stems, in the cambium between the xylem and phloem in dicotyledonous trees and shrubs, under the epidermis of dicotyledonous trees and shrubs (cork cambium), and in the pericycle of ...

Which one increases girth of stem or root?

Complete answer:

The girth of the stem or root increases because of 'Cambium'. Cambiums are the lateral meristems that participate in the secondary growth of dicots.

What is stem girth?

Stem girth means stem thickening. Complete answer: Stem girth increases due to lateral meristematic tissues. They are found as thin layers under the bark (called the cork cambium) and in vascular bundles of dicot roots and stems (called the vascular change) .

Are meristematic cells living?

Meristematic cells are all living cells. The meristematic cells can be oval or rounded or polygonal in shape. They have a large nucleus with no vacuoles. Intercellular space between cells is absent.

Why are vacuoles absent in?

Compared to other cells, animal cells have smaller vacuoles, as they do not require the storage of more water, organic and inorganic for the proper functioning of the cell.

Why vacuoles are absent in animal cell?

Animal cells have smaller vacuoles than other cells since they don't need to store as much water, both organic and inorganic, for proper operation. It's partly due to the inevitable evolutionary trade-off. Animal cells are part of a bigger organism that can relocate to find water, food, and other necessities.

What happens if meristematic tissue is absent in plants?

Answer: If meristematic tissues are not present, the growth of the plants would be stop. Because meristematic tissues consist of dividing cells and are present at growing points of plants. These are responsible for the growth of plants.

What is the 4 types of tissue?

There are 4 basic types of tissue: connective tissue, epithelial tissue, muscle tissue, and nervous tissue. Connective tissue supports other tissues and binds them together (bone, blood, and lymph tissues). Epithelial tissue provides a covering (skin, the linings of the various passages inside the body).

What is tissue class 3?

In simple terms, tissue can be defined as a group of cells with similar shape and function are termed as tissues. They form a cellular organizational level, intermediate between the cells and organ system. Organs are then created by combining the functional groups of tissues.

Which is not a permanent tissue?

The collenchyma is living cells, with actively dividing protoplasm. Hence it is not a permanent tissue. Collenchyma is a simple tissue but not permanent.

What is the main characteristics of permanent tissue?

Characteristic features of permanent tissues: (i) Cells may be living or dead. (ii) Cell walls may be thin or thick. (iii) Cells may contain reserve, excretory or secretory substances.

What is difference between meristematic and permanent tissue?

Meristematic tissue has cells small in size and isodiametric in shape. Permanent tissue has cells large in size and their shape varies. ... Vacuoles are usually absent in meristematic tissue. Vacuoles are present in living cells of permanent tissue.

What is responsible for girth of stem and root?

Answer: Girth of the stem increases due to lateral meristematic tissues. They are found beneath the bark (called cork cambium) and in vascular bundles of dicot roots andstems (called vascular cambium) as thin layers. This increase in the diameter and girth of the plant is called secondary growth.