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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 : A plant cell bursts if placed in water.
Reason : High turgor pressure causes bursting of plant 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 'D'. Can you explain this answer?
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Direction: In the following questions, a statement of assertion (A) i...
Plant cells have cell wall to counteract turgor pressure (T.P.) by exerting exactly equal and opposite wall pressure. Wall pressure stops entry of water into plant cells beyond a certain limit thus prevents their bursting.
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Direction: In the following questions, a statement of assertion (A) i...
Assertion: A plant cell bursts if placed in water.
Reason: High turgor pressure causes bursting of plant cells.
The correct answer for this question is option 'D', which states that the assertion (A) is false but the reason (R) is true.
Explanation:
1. Understanding plant cells:
- Plant cells have a rigid cell wall that provides support and protection to the cell.
- Inside the cell, there is a central vacuole filled with a solution called cell sap.
- The cell sap is mainly composed of water and dissolved substances such as sugars, salts, and proteins.
- The vacuole exerts an osmotic pressure on the cell wall, known as turgor pressure.
2. Assertion: Plant cell bursts if placed in water.
- This statement is not entirely true. Plant cells do not burst when placed in water due to the presence of a cell wall.
- The cell wall acts as a protective barrier and prevents the cell from bursting.
3. Reason: High turgor pressure causes bursting of plant cells.
- This statement is true. When a plant cell is placed in a hypotonic solution (such as water), water molecules move into the cell by osmosis.
- The entry of water increases the volume of the vacuole, putting pressure on the cell wall.
- The pressure exerted by the vacuole against the cell wall is called turgor pressure.
- In a normal condition, the cell wall can withstand this turgor pressure without bursting.
4. Cell bursting in certain conditions:
- However, if the turgor pressure becomes too high, it can cause the cell wall to rupture, leading to cell bursting.
- This can occur in extreme conditions such as when the plant is subjected to a sudden increase in water availability or when the cell wall is weakened or damaged.
5. Conclusion:
- Plant cells do not burst when placed in water due to the presence of a cell wall.
- The reason that high turgor pressure causes bursting of plant cells is true, but the assertion that a plant cell bursts if placed in water is false.
- Therefore, the correct answer is option 'D'.
Reason: High turgor pressure causes bursting of plant cells.
The correct answer for this question is option 'D', which states that the assertion (A) is false but the reason (R) is true.
Explanation:
1. Understanding plant cells:
- Plant cells have a rigid cell wall that provides support and protection to the cell.
- Inside the cell, there is a central vacuole filled with a solution called cell sap.
- The cell sap is mainly composed of water and dissolved substances such as sugars, salts, and proteins.
- The vacuole exerts an osmotic pressure on the cell wall, known as turgor pressure.
2. Assertion: Plant cell bursts if placed in water.
- This statement is not entirely true. Plant cells do not burst when placed in water due to the presence of a cell wall.
- The cell wall acts as a protective barrier and prevents the cell from bursting.
3. Reason: High turgor pressure causes bursting of plant cells.
- This statement is true. When a plant cell is placed in a hypotonic solution (such as water), water molecules move into the cell by osmosis.
- The entry of water increases the volume of the vacuole, putting pressure on the cell wall.
- The pressure exerted by the vacuole against the cell wall is called turgor pressure.
- In a normal condition, the cell wall can withstand this turgor pressure without bursting.
4. Cell bursting in certain conditions:
- However, if the turgor pressure becomes too high, it can cause the cell wall to rupture, leading to cell bursting.
- This can occur in extreme conditions such as when the plant is subjected to a sudden increase in water availability or when the cell wall is weakened or damaged.
5. Conclusion:
- Plant cells do not burst when placed in water due to the presence of a cell wall.
- The reason that high turgor pressure causes bursting of plant cells is true, but the assertion that a plant cell bursts if placed in water is false.
- Therefore, the correct answer is option 'D'.
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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 : A plant cell bursts if placed in water.Reason : High turgor pressure causes bursting of plant 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 'D'. 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 : A plant cell bursts if placed in water.Reason : High turgor pressure causes bursting of plant 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 'D'. 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 : A plant cell bursts if placed in water.Reason : High turgor pressure causes bursting of plant 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 'D'. 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 : A plant cell bursts if placed in water.Reason : High turgor pressure causes bursting of plant 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 'D'. 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 : A plant cell bursts if placed in water.Reason : High turgor pressure causes bursting of plant 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 'D'. 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 : A plant cell bursts if placed in water.Reason : High turgor pressure causes bursting of plant 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 'D'. 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 : A plant cell bursts if placed in water.Reason : High turgor pressure causes bursting of plant 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 'D'. 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 : A plant cell bursts if placed in water.Reason : High turgor pressure causes bursting of plant 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 'D'. 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 : A plant cell bursts if placed in water.Reason : High turgor pressure causes bursting of plant 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 'D'. 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 : A plant cell bursts if placed in water.Reason : High turgor pressure causes bursting of plant 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 'D'. 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 : A plant cell bursts if placed in water.Reason : High turgor pressure causes bursting of plant 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 'D'. 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 : A plant cell bursts if placed in water.Reason : High turgor pressure causes bursting of plant 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 'D'. 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 : A plant cell bursts if placed in water.Reason : High turgor pressure causes bursting of plant 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 'D'. Can you explain this answer? tests, examples and also practice Class 9 tests.
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