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STD 11 - 6. Anatomy flowering plants — BIOLOGY STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceBIOLOGYSTD 11 - 6. Anatomy flowering plants1 Mark
MCQ
Collenchyma differs from sclerenchyma
  • ✓
    Retaining protoplasm at maturity
  • B
    Having thick walls
  • C
    Having wide lumen
  • D
    Being meristematic
✓

Answer

Correct option: A.
Retaining protoplasm at maturity
a
(a) The cells of collenchyma contain protoplasm and are living without intercellular spaces. When sclerenchyma consist of thick-walled dead cells.

In the beginning the cells are living and have protoplasm but due to deposition of impermeable secondary walls $(lignin)$ they become dead, thick and hard.

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