BIO NMDCAT CELL STRUCTURE & FUNCTION

nmdcat.online July 3, 2026

38. The dynamic structural element of the plant cell wall that is synthesized first during cell growth, exhibiting high flexibility to permit expansion, is the

A. Secondary cell wall

B. Primary cell wall

✓

C. Middle lamella

D. Lignified layer

📝 Explanation

The primary cell wall is laid down by expanding cells; it is thin, extensible, and flexible, accommodating cell growth and elongation.

📖 Additional Information

Secondary cell wall
Primary cell wall
Middle lamella
Lignified layer

The primary cell wall is laid down by expanding cells; it is thin, extensible, and flexible, accommodating cell growth and elongation.

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