Multiple choice

The cell walls of sclerenchyma are greatly thickened with

  1. xylem

  2. phloem

  3. lignin

  4. aerenchyma

  5. epidermis

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

This is the correct option. The cell walls of sclerenchyma are greatly thickened with lignin. Lignin is a complex polymer which acts as a cement and hardens the cell walls.