Multiple choice

Lignification is associated with:

  1. xylem

  2. phloem

  3. parenchyma

  4. chlorenchyma

  5. cambium

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A Correct answer
Explanation

Lignin deposition strengthens cell walls, making them waterproof and rigid. Xylem vessels and tracheids require extensive lignification to withstand water transport under tension. Phloem, parenchyma, chlorenchyma, and cambium have minimal or no lignification.