STRUCTURAL ORGANISTION OF PLANTS AND ANIMALS
ANATOMY OF FLOWERING PLANTS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which of the following statements is incorrect about Collenchyma tissue?
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Generally occurs below epidermis in dicot plants
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Cells have thickened corners due to deposition of lignin
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They are oval, spherical or polygonal shaped cells
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Intercellular spaces are absent
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Explanation:
Detailed explanation-1: -Cells of collenchyma are thickened with pectin, while cells of schlerenchyma are thickened with lignin.
Detailed explanation-2: -So, the correct answer is ‘Collenchyma occurs in layers below epidermis in dicotyledonous plants. ‘
Detailed explanation-3: -Due to the hemicellulose, cellulose, and pectin deposits, the cells of collenchyma tissue are significantly thickened at the corners.
Detailed explanation-4: -Collenchyma are thin-walled but possess thickening of cellulose, water and pectin substances at the corners where number of cells join together. Hence, the cells are living elongated and irregularly thickened at the corners. Therefore, the correct answer is option D.
There is 1 question to complete.