Multiple choice

Which of the following is not a characteristic of plant cell walls?

  1. They are found only in the sporophyte phase of life cycle.

  2. Among other compounds, they contain compounds built of simple sugars.

  3. They may contain enzymes that are biologically active.

  4. They often contain strengthening polymers.

  5. A site of active secretion.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Plant cell walls are present in BOTH sporophyte and gametophyte phases of the plant life cycle, not just the sporophyte. This makes option A incorrect and thus the answer to 'which is NOT a characteristic'. Cell walls contain sugar-based compounds (cellulose), can have active enzymes, and contain strengthening polymers (lignin).

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