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The Fundamental Unit of Life — Science STD 9 — Question

CBSE BoardEnglish MediumSTD 9ScienceThe Fundamental Unit of Life1 Mark
MCQ
By the process of lignification, cell becomes:
  • A
    More active.
  • B
    Less active.
  • C
    Dead.
  • D
    None of the above.
✓

Answer

  1. Dead.

Explanation:

Lignification is the process whereby lignin is deposited in the cell wall by which it becomes harder. It occurs in xylem tissue in a scheduled manner during tissue differentiation and so the cells are dead.

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