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Tissues — Science STD 9 — Question

Rajasthan BoardEnglish MediumSTD 9ScienceTissues1 Mark
Question
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Answer

  1. Apical and intercalary meristems are permanent tissues.
Explanation:
Apical and intercalary meristems are permanent tissues
Parenchyma serves as a packing tissue in plants therefore they do not have intercellular spaces. Collenchymatous tissues are mechanical tissues in the plants and are characterised by deposition of cellulose at the corners of the cell, which leads to localised thickenings of the cell wall. Apical and intercalary meristem bring primary growth (increase in height) and secondary growth (increase in diameter) respectively and are classified under meristematic tissues. Meristematic tissue are dividing units of the plants and contain dense cytoplasm and large nucleus with few or no vacuoles at all.

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