Question

What Is The Basis On Which Sclerenchyma Could Be Either Fibres Or Sclereids?

Answer 1

Sclereids:

1. In most plants, sclereids are reduced versions of sclerenchyma cells.
2. They have thicker, lignified cell walls that form tiny bundles of persistent tissue layers.

Sclerenchyma:

1. Sclerenchyma cells are typically long, thin, and sharp at both ends.
2. The accumulation of lignin thickens them equally, leaving no gap between the cells.

Fibers:

1. The fibers are long with tapering ends and polygonal in the transverse plane and are a form of spindle cell.
2. The lignified secondary wall, which varies in form, size, structure, wall thickness, and pit kinds, distinguishes them.

Division of Sclerenchyma:

The sclerenchyma is divided on the basis of variation in:

1. structure
2. formation
3. development
4. origin of these tissues.