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Given below are assertion and reason. Point out if both true with reason being correct explanation
Assertion. Collenchyma is thick walled tissue.
Reason Collenchyma is thickened due to deposition of pectin.
Reason Collenchyma is thickened due to deposition of pectin.
- a)both true but reason not correct explanation
- b)both assertion and reason are correct
- c)assertion true but reason is wrong
- d)both are wrong
Correct answer is option 'A'. Can you explain this answer?
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Most Upvoted Answer
Given below are assertion and reason. Point out if both true with reas...
The correct option is A . The collenchyma is a thick tissue(it is thick at its corners), which makes our assertion right. It is thick at corners because of the deposition of cellulose, hemicellulose and pectin.
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Given below are assertion and reason. Point out if both true with reas...
Assertion: Collenchyma is thick-walled tissue.
Reason: Collenchyma is thickened due to deposition of pectin.
The correct answer is option 'A' - both true, but the reason is not a correct explanation.
Explanation:
Collenchyma:
Collenchyma is a type of simple permanent tissue found in plants. It is characterized by its thickened cell walls, which provide mechanical support to the plant. Collenchyma cells are elongated and have irregularly thickened primary cell walls.
Reasoning:
Deposition of Pectin:
Pectin is a complex polysaccharide that is found in the middle lamella and primary cell walls of plant cells. It is a major component of the cell wall and helps in binding the cells together. Pectin deposition in the cell wall can contribute to its thickening.
However, pectin is not the only factor responsible for the thickening of collenchyma cell walls. Collenchyma cells also contain other components such as cellulose, hemicellulose, and lignin, which contribute to their thickening. The thickening of collenchyma cell walls is a result of a combination of these components and their arrangement.
Conclusion:
While the assertion that collenchyma is a thick-walled tissue is true, the reason given - deposition of pectin - is not a complete or correct explanation. The thickening of collenchyma cell walls is a complex process involving multiple components, including pectin, cellulose, hemicellulose, and lignin. Therefore, option 'A' - both true, but the reason is not a correct explanation - is the correct answer.
Reason: Collenchyma is thickened due to deposition of pectin.
The correct answer is option 'A' - both true, but the reason is not a correct explanation.
Explanation:
Collenchyma:
Collenchyma is a type of simple permanent tissue found in plants. It is characterized by its thickened cell walls, which provide mechanical support to the plant. Collenchyma cells are elongated and have irregularly thickened primary cell walls.
Reasoning:
Deposition of Pectin:
Pectin is a complex polysaccharide that is found in the middle lamella and primary cell walls of plant cells. It is a major component of the cell wall and helps in binding the cells together. Pectin deposition in the cell wall can contribute to its thickening.
However, pectin is not the only factor responsible for the thickening of collenchyma cell walls. Collenchyma cells also contain other components such as cellulose, hemicellulose, and lignin, which contribute to their thickening. The thickening of collenchyma cell walls is a result of a combination of these components and their arrangement.
Conclusion:
While the assertion that collenchyma is a thick-walled tissue is true, the reason given - deposition of pectin - is not a complete or correct explanation. The thickening of collenchyma cell walls is a complex process involving multiple components, including pectin, cellulose, hemicellulose, and lignin. Therefore, option 'A' - both true, but the reason is not a correct explanation - is the correct answer.
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Given below are assertion and reason. Point out if both true with reason being correct explanationAssertion. Collenchyma is thick walled tissue.Reason Collenchyma is thickened due to deposition of pectin.a)both true but reason not correct explanationb)both assertion and reason are correctc)assertion true but reason is wrongd)both are wrongCorrect answer is option 'A'. Can you explain this answer?
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