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Assertion (A): Meristematic tissues in plants are primarily responsible for plant growth.
Reason (R): Meristematic tissues contain actively dividing cells that lead to an increase in length and girth of plant organs.
  • a)
    If both Assertion and Reason are true and Reason is the correct explanation of Assertion
  • b)
    If both Assertion and Reason are true but Reason is not the correct explanation of Assertion
  • c)
    If Assertion is true but Reason is false
  • d)
    If both Assertion and Reason are false
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
Assertion (A): Meristematic tissues in plants are primarily responsibl...
Understanding Meristematic Tissues
Meristematic tissues play a crucial role in plant growth. They are unique due to their ability to divide continuously, which is fundamental for the development of plants.
Assertion (A): True
- Meristematic tissues are indeed responsible for plant growth.
- They are located at specific zones in the plant, such as the tips of roots and shoots (apical meristems) and the cambium layer (lateral meristems).
Reason (R): True
- These tissues contain actively dividing cells, which are essential for growth.
- The division of these cells contributes to the elongation of roots and stems, as well as the thickening of the plant body.
Correct Explanation: Reason Supports Assertion
- The reason provides a clear explanation for the assertion.
- Since meristematic tissues have actively dividing cells, they are directly responsible for increasing the length (through apical meristems) and girth (through lateral meristems) of plant organs.
- This continuous division leads to the formation of new cells, which is essential for overall plant development.
Conclusion
- Both the assertion and the reason are true.
- The reason serves as an accurate explanation of why meristematic tissues are critical for plant growth.
Thus, the correct answer is option 'A', as both the assertion and reason are true, with the reason being the correct explanation of the assertion.
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Community Answer
Assertion (A): Meristematic tissues in plants are primarily responsibl...
  • The assertion that meristematic tissues in plants are primarily responsible for plant growth is correct. These tissues contain actively dividing cells, which contribute to the increase in length and girth of plant organs, supporting the assertion.
  • The reason statement is also true. Meristematic tissues indeed have cells that divide rapidly, leading to growth. This aligns with the characteristic function of meristems in plants.
  • Furthermore, the reason provides an accurate and logical explanation for the assertion. The actively dividing cells in meristems are responsible for the growth of plant organs, thus justifying why Reason is the correct explanation of Assertion.
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Assertion (A): Meristematic tissues in plants are primarily responsible for plant growth.Reason (R): Meristematic tissues contain actively dividing cells that lead to an increase in length and girth of plant organs.a)If both Assertion and Reason are true and Reason is the correct explanation of Assertionb)If both Assertion and Reason are true but Reason is not the correct explanation of Assertionc)If Assertion is true but Reason is falsed)If both Assertion and Reason are falseCorrect answer is option 'A'. Can you explain this answer? for Class 9 2026 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about Assertion (A): Meristematic tissues in plants are primarily responsible for plant growth.Reason (R): Meristematic tissues contain actively dividing cells that lead to an increase in length and girth of plant organs.a)If both Assertion and Reason are true and Reason is the correct explanation of Assertionb)If both Assertion and Reason are true but Reason is not the correct explanation of Assertionc)If Assertion is true but Reason is falsed)If both Assertion and Reason are falseCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 9 2026 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Assertion (A): Meristematic tissues in plants are primarily responsible for plant growth.Reason (R): Meristematic tissues contain actively dividing cells that lead to an increase in length and girth of plant organs.a)If both Assertion and Reason are true and Reason is the correct explanation of Assertionb)If both Assertion and Reason are true but Reason is not the correct explanation of Assertionc)If Assertion is true but Reason is falsed)If both Assertion and Reason are falseCorrect answer is option 'A'. Can you explain this answer?.
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