Multiple choice

Which of the following cells are invested with lignin?

  1. Collenchyma cells

  2. Sclerenchyma cells

  3. Parenchyma cells

  4. Meristematic cells
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

These cells are hard and brittle. The cells develop an extensive secondary cell wall (laid down on the inside of the primary wall). This wall is invested with lignin, making it extremely hard. Lignin, plus suberin and/or cutin, make the wall waterproof as well.

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