Question

Dead cells with narrow lumen, dignified cell wall with a few or numerous pits and serving a mechanicalfunction on are called

Answer 1

Fibers have very thick secondary walls like sclereids but are elongated, spindle-shaped cells with long, narrow cell lumens; the lignified wall generally contains simple pits with slit-like apertures. They form supportive structures in tissues after the elongation growth has ceased and occur in many plant parts; many fibers, such as flax and jute, are of economic importance

Answer 2

Function of Sclerenchyma cells

Explanation:

• Dead cell with narrow lumen lignified cell wall with a few of numerous pits and serving a mechanical function only are called sclerenchyma
• The cell dividers contain pits, empowering the trading of substances between adjacent cells
• Develop sclerenchyma cells are dead, since the lignin makes the cell divider impermeable to water and gases
• Sclerenchyma cells appear as strands or sclereids
• Sclerenchyma was found and coined by Mettenius