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Direction: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:
Assertion : Permanent tissue is composed of mature cells.
Reason : Meristematic tissue is a group of actively dividing cells.
- a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).
- b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).
- c)Assertion (A) is true but reason (R) is false.
- d)Assertion (A) is false but reason (R) is true.
Correct answer is option 'A'. Can you explain this answer?
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Direction: In the following questions, a statement of assertion (A) i...
A meristematic tissue is a group of cells. That are in a continuous state of division or retain their power of division. Permanent tissues are composed of mature cells that, after undergoing complete growth, have assumed a definite shape, size and function and have temporarily or permanently lost the power of division.
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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 'A' - Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).
Explanation:
Permanent tissue and meristematic tissue are two types of tissues found in plants. Let's understand each of them in detail:
Permanent tissue:
Permanent tissue is composed of mature cells that have lost their ability to divide and differentiate further. These cells are specialized to perform specific functions in the plant. Permanent tissues are derived from meristematic tissue through a process called cell differentiation. They are classified into two types:
1. Simple permanent tissue: Composed of only one type of cells, the simple permanent tissue can be further classified into three types:
- Parenchyma: Composed of loosely packed cells with thin cell walls. It is involved in photosynthesis, storage, and secretion.
- Collenchyma: Composed of elongated cells with thickened cell walls. It provides mechanical support to the plant.
- Sclerenchyma: Composed of dead cells with thick, lignified cell walls. It provides mechanical support and protection to the plant.
2. Complex permanent tissue: Composed of more than one type of cells, the complex permanent tissue includes:
- Xylem: Composed of tracheids, vessels, fibers, and parenchyma cells. It transports water and minerals from roots to other parts of the plant.
- Phloem: Composed of sieve tubes, companion cells, fibers, and parenchyma cells. It transports organic materials (sap) from leaves to other parts of the plant.
Meristematic tissue:
Meristematic tissue is a group of actively dividing cells found in certain regions of the plant called meristems. These cells have the ability to divide and differentiate into various types of cells, giving rise to new cells and tissues. Meristematic tissue is responsible for the growth of the plant in length and thickness. It is classified into three types:
1. Apical meristem: Found at the tips of roots and shoots, apical meristem is responsible for the primary growth of the plant.
2. Lateral meristem: Found in the cambium layer, lateral meristem is responsible for the secondary growth of the plant, increasing the girth or thickness.
3. Intercalary meristem: Found in the intercalary regions, such as the base of leaves and internodes, intercalary meristem is responsible for the growth of internodes and the formation of new leaf bases.
Explanation of the assertion and reason:
The assertion states that permanent tissue is composed of mature cells, which is true. Permanent tissue is formed by the differentiation of meristematic tissue, where the actively dividing cells of meristematic tissue mature and specialize into specific cell types.
The reason states that meristematic tissue is a group of actively dividing cells, which is also true. Meristematic tissue consists of cells that continuously divide and give rise to new cells, allowing for the growth and development of the plant.
Therefore, the reason is the correct explanation of the assertion. The mature cells of permanent tissue are derived from the actively dividing cells of meristematic tissue.
Reason : Meristematic tissue is a group of actively dividing cells.
The correct answer is option 'A' - Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).
Explanation:
Permanent tissue and meristematic tissue are two types of tissues found in plants. Let's understand each of them in detail:
Permanent tissue:
Permanent tissue is composed of mature cells that have lost their ability to divide and differentiate further. These cells are specialized to perform specific functions in the plant. Permanent tissues are derived from meristematic tissue through a process called cell differentiation. They are classified into two types:
1. Simple permanent tissue: Composed of only one type of cells, the simple permanent tissue can be further classified into three types:
- Parenchyma: Composed of loosely packed cells with thin cell walls. It is involved in photosynthesis, storage, and secretion.
- Collenchyma: Composed of elongated cells with thickened cell walls. It provides mechanical support to the plant.
- Sclerenchyma: Composed of dead cells with thick, lignified cell walls. It provides mechanical support and protection to the plant.
2. Complex permanent tissue: Composed of more than one type of cells, the complex permanent tissue includes:
- Xylem: Composed of tracheids, vessels, fibers, and parenchyma cells. It transports water and minerals from roots to other parts of the plant.
- Phloem: Composed of sieve tubes, companion cells, fibers, and parenchyma cells. It transports organic materials (sap) from leaves to other parts of the plant.
Meristematic tissue:
Meristematic tissue is a group of actively dividing cells found in certain regions of the plant called meristems. These cells have the ability to divide and differentiate into various types of cells, giving rise to new cells and tissues. Meristematic tissue is responsible for the growth of the plant in length and thickness. It is classified into three types:
1. Apical meristem: Found at the tips of roots and shoots, apical meristem is responsible for the primary growth of the plant.
2. Lateral meristem: Found in the cambium layer, lateral meristem is responsible for the secondary growth of the plant, increasing the girth or thickness.
3. Intercalary meristem: Found in the intercalary regions, such as the base of leaves and internodes, intercalary meristem is responsible for the growth of internodes and the formation of new leaf bases.
Explanation of the assertion and reason:
The assertion states that permanent tissue is composed of mature cells, which is true. Permanent tissue is formed by the differentiation of meristematic tissue, where the actively dividing cells of meristematic tissue mature and specialize into specific cell types.
The reason states that meristematic tissue is a group of actively dividing cells, which is also true. Meristematic tissue consists of cells that continuously divide and give rise to new cells, allowing for the growth and development of the plant.
Therefore, the reason is the correct explanation of the assertion. The mature cells of permanent tissue are derived from the actively dividing cells of meristematic tissue.
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Direction: In the following questions, a statement of assertion (A) i...
How can A be correct option , acc to me R is not explaining A it's just a fact
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Direction: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion : Permanent tissue is composed of mature cells.Reason : Meristematic tissue is a group of actively dividing cells.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'A'. Can you explain this answer?
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Direction: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion : Permanent tissue is composed of mature cells.Reason : Meristematic tissue is a group of actively dividing cells.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'A'. Can you explain this answer? for Class 9 2024 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about Direction: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion : Permanent tissue is composed of mature cells.Reason : Meristematic tissue is a group of actively dividing cells.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 9 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Direction: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion : Permanent tissue is composed of mature cells.Reason : Meristematic tissue is a group of actively dividing cells.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'A'. Can you explain this answer?.
Direction: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion : Permanent tissue is composed of mature cells.Reason : Meristematic tissue is a group of actively dividing cells.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'A'. Can you explain this answer? for Class 9 2024 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about Direction: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion : Permanent tissue is composed of mature cells.Reason : Meristematic tissue is a group of actively dividing cells.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 9 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Direction: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion : Permanent tissue is composed of mature cells.Reason : Meristematic tissue is a group of actively dividing cells.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'A'. Can you explain this answer?.
Solutions for Direction: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion : Permanent tissue is composed of mature cells.Reason : Meristematic tissue is a group of actively dividing cells.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 9.
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Here you can find the meaning of Direction: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion : Permanent tissue is composed of mature cells.Reason : Meristematic tissue is a group of actively dividing cells.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'A'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
Direction: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion : Permanent tissue is composed of mature cells.Reason : Meristematic tissue is a group of actively dividing cells.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'A'. Can you explain this answer?, a detailed solution for Direction: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion : Permanent tissue is composed of mature cells.Reason : Meristematic tissue is a group of actively dividing cells.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'A'. Can you explain this answer? has been provided alongside types of Direction: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion : Permanent tissue is composed of mature cells.Reason : Meristematic tissue is a group of actively dividing cells.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'A'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Direction: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion : Permanent tissue is composed of mature cells.Reason : Meristematic tissue is a group of actively dividing cells.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'A'. Can you explain this answer? tests, examples and also practice Class 9 tests.
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