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Biology

Deepali tried to match the kind of supporting tissues in plants with their characteristic features.
She tabulated the pairs as follows:

Supporting tissueCellular structure
PDead cells, have thick walls due to deposition of lignin
QElongated cells, cell wall is thickened at the corners

Identify P and Q

  1. P — Collenchyma, Q — Sclerenchyma
  2. P — Sclerenchyma, Q — Collenchyma
  3. P — Parenchyma, Q — Sclerenchyma
  4. P — Collenchyma, Q — Parenchyma

Tissues

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Answer

P — Sclerenchyma, Q — Collenchyma

Reason — Sclerenchyma is made of dead cells. Cell walls are thickened with lignin, making them rigid and supportive. Collenchyma is made of living cells and are elongated. Cell walls are unevenly thickened at the corners, providing flexible support.

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