Question

Identify the plant tissue in which lignin is absent

• A. Collenchyma
• B. Sclerenchyma fibres
• C. Sclereids
• D. Xylem tracheae

Answer 1

The correct option is A Collenchyma

Collenchyma, in plants, support tissue of living elongated cells with irregular cell walls. Collenchyma cells have thick deposits of cellulose in their cell walls and appear polygonal in cross section. The strength of the tissue results from these thickened cell walls and the longitudinal interlocking of the cells. Collenchyma cells lack secondary walls, and the hardening agent lignin is absent in their primary walls.

So, the correct answer is 'Collenchyma.'