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Cell wall is a rigid wall that lies outside the plasma membrane. Which of the following is not a function of the cell wall?
- a)It regulates the cell cycle.
- b)The cell wall and middle lamellae may be traversed by plasmodesmata which connect the cytoplasm of neighbouring cells.
- c)It permits the plant to become turgid.
- d)It provides mechanical strength and support to the cell.
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
Cell wall is a rigid wall that lies outside the plasma membrane. Which...
Topic in NCERT: Cell Wall
- Regulation of the Cell Cycle:
- This is not a function of the cell wall. The cell cycle is regulated by various cellular mechanisms and structures within the cell, particularly involving the nucleus, cytoplasm, and specific proteins and enzymes.
- Plasmodesmata Connection:
- The cell wall and middle lamella can be traversed by plasmodesmata, which allow cytoplasmic connections between neighboring plant cells.
- Turgidity:
- The cell wall permits plants to become turgid by maintaining structural integrity when the cell takes up water.
- Mechanical Strength:
- The cell wall provides mechanical strength and support, protecting against damage and maintaining cell shape.
- Regulation of the Cell Cycle:
- This is not a function of the cell wall. The cell cycle is regulated by various cellular mechanisms and structures within the cell, particularly involving the nucleus, cytoplasm, and specific proteins and enzymes.
- Plasmodesmata Connection:
- The cell wall and middle lamella can be traversed by plasmodesmata, which allow cytoplasmic connections between neighboring plant cells.
- Turgidity:
- The cell wall permits plants to become turgid by maintaining structural integrity when the cell takes up water.
- Mechanical Strength:
- The cell wall provides mechanical strength and support, protecting against damage and maintaining cell shape.
Line in NCERT: "Cell wall not only gives shape to the cell and protects the cell from mechanical damage and infection, it also helps in cell-to-cell interaction and provides barrier to undesirable macromolecules."
The cell wall and middle lamellae may be traversed by plasmodesmata which connect the cytoplasm of neighbouring cells.
The cell wall and middle lamellae may be traversed by plasmodesmata which connect the cytoplasm of neighbouring cells.
Most Upvoted Answer
Cell wall is a rigid wall that lies outside the plasma membrane. Which...
Understanding the Cell Wall Functions
The cell wall is a crucial structure in plant cells, providing various functions that contribute to the overall health and functionality of the cell. Among the options provided, option 'A' is not a function of the cell wall.
Key Functions of the Cell Wall:
- Mechanical Strength and Support:
The cell wall provides structural integrity to the plant cell, helping it maintain its shape and withstand external pressures.
- Turgidity:
It allows the plant to become turgid by maintaining osmotic pressure. This is vital for keeping plants upright and ensuring optimal photosynthesis.
- Cell Communication:
The presence of plasmodesmata within the cell wall and middle lamellae facilitates communication between neighboring cells by allowing the exchange of nutrients and signaling molecules.
Why 'A' is Not a Function:
- Regulation of the Cell Cycle:
The regulation of the cell cycle is primarily governed by molecular signals and checkpoints within the cell, specifically managed by mechanisms in the nucleus and cytoplasm. The cell wall does not play a direct role in this process.
In summary, while the cell wall is essential for providing support, turgidity, and facilitating communication, it does not regulate the cell cycle, making option 'A' the correct answer. Understanding these distinctions helps clarify the functional importance of the cell wall in plant biology.
The cell wall is a crucial structure in plant cells, providing various functions that contribute to the overall health and functionality of the cell. Among the options provided, option 'A' is not a function of the cell wall.
Key Functions of the Cell Wall:
- Mechanical Strength and Support:
The cell wall provides structural integrity to the plant cell, helping it maintain its shape and withstand external pressures.
- Turgidity:
It allows the plant to become turgid by maintaining osmotic pressure. This is vital for keeping plants upright and ensuring optimal photosynthesis.
- Cell Communication:
The presence of plasmodesmata within the cell wall and middle lamellae facilitates communication between neighboring cells by allowing the exchange of nutrients and signaling molecules.
Why 'A' is Not a Function:
- Regulation of the Cell Cycle:
The regulation of the cell cycle is primarily governed by molecular signals and checkpoints within the cell, specifically managed by mechanisms in the nucleus and cytoplasm. The cell wall does not play a direct role in this process.
In summary, while the cell wall is essential for providing support, turgidity, and facilitating communication, it does not regulate the cell cycle, making option 'A' the correct answer. Understanding these distinctions helps clarify the functional importance of the cell wall in plant biology.
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Cell wall is a rigid wall that lies outside the plasma membrane. Which of the following is not a function of the cell wall?a)It regulates the cell cycle.b)The cell wall and middle lamellae may be traversed by plasmodesmata which connect the cytoplasm of neighbouring cells.c)It permits the plant to become turgid.d)It provides mechanical strength and support to the cell.Correct answer is option 'A'. Can you explain this answer? for NEET 2025 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Cell wall is a rigid wall that lies outside the plasma membrane. Which of the following is not a function of the cell wall?a)It regulates the cell cycle.b)The cell wall and middle lamellae may be traversed by plasmodesmata which connect the cytoplasm of neighbouring cells.c)It permits the plant to become turgid.d)It provides mechanical strength and support to the cell.Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for NEET 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Cell wall is a rigid wall that lies outside the plasma membrane. Which of the following is not a function of the cell wall?a)It regulates the cell cycle.b)The cell wall and middle lamellae may be traversed by plasmodesmata which connect the cytoplasm of neighbouring cells.c)It permits the plant to become turgid.d)It provides mechanical strength and support to the cell.Correct answer is option 'A'. Can you explain this answer?.
Cell wall is a rigid wall that lies outside the plasma membrane. Which of the following is not a function of the cell wall?a)It regulates the cell cycle.b)The cell wall and middle lamellae may be traversed by plasmodesmata which connect the cytoplasm of neighbouring cells.c)It permits the plant to become turgid.d)It provides mechanical strength and support to the cell.Correct answer is option 'A'. Can you explain this answer? for NEET 2025 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Cell wall is a rigid wall that lies outside the plasma membrane. Which of the following is not a function of the cell wall?a)It regulates the cell cycle.b)The cell wall and middle lamellae may be traversed by plasmodesmata which connect the cytoplasm of neighbouring cells.c)It permits the plant to become turgid.d)It provides mechanical strength and support to the cell.Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for NEET 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Cell wall is a rigid wall that lies outside the plasma membrane. Which of the following is not a function of the cell wall?a)It regulates the cell cycle.b)The cell wall and middle lamellae may be traversed by plasmodesmata which connect the cytoplasm of neighbouring cells.c)It permits the plant to become turgid.d)It provides mechanical strength and support to the cell.Correct answer is option 'A'. Can you explain this answer?.
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