Direction: In the following questions, a statement of assertion (A) i...
Meristematic tissues are made up of actively dividing cells, present in the growing areas of the plant body whereas Permanent tissue is a well-differentiated plant tissue derived from meristematic tissue, which has lost its ability to divide.
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Direction: In the following questions, a statement of assertion (A) i...
Assertion: Permanent tissue is composed of mature cells.
Reason: Meristematic tissue is a group of actively dividing cells.
The correct answer is option 'B': Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).
Explanation:
Permanent tissue and meristematic tissue are two types of tissues found in plants. Let's understand each term separately and then analyze the given assertion and reason.
Permanent Tissue:
Permanent tissue is composed of mature cells that have completed their division and are specialized for specific functions in the plant. These cells have lost the ability to divide further. Permanent tissue can be further classified into two types: simple permanent tissue and complex permanent tissue. Simple permanent tissue consists of cells that are structurally and functionally similar, while complex permanent tissue consists of different types of cells with specialized functions.
Meristematic Tissue:
Meristematic tissue, on the other hand, is a group of actively dividing cells that are responsible for the growth of plants. It is located in the growing regions of the plant, such as the tips of roots and stems, and is responsible for the production of new cells. The cells in the meristematic tissue have thin cell walls, large nuclei, and dense cytoplasm to support rapid cell division.
Analysis of the Assertion and Reason:
The assertion states that permanent tissue is composed of mature cells, which is true. Permanent tissue consists of fully differentiated cells that have completed their division and have specialized functions. These cells are no longer capable of dividing.
The reason states that meristematic tissue is a group of actively dividing cells, which is also true. Meristematic tissue is responsible for the growth and development of plants and is composed of cells that are actively undergoing cell division.
However, the reason does not provide a correct explanation for the assertion. The reason talks about the properties of meristematic tissue but does not directly explain why permanent tissue is composed of mature cells. The assertion and reason are both true, but they are not directly related to each other.
Therefore, the correct answer is option 'B': Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).
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