list the characteristics features of Sclerenchyma.
Answers
Answer:
Sclerenchyma cells have thick, lignified secondary walls, lack cell contents at maturity, and occur throughout all plant tissues. These features make sclerenchyma tissues hard, rigid, and somewhat brittle. Sclerenchyma cells can occur as aggregates within ground tissue (sclereids or stone cells or as elongated fibers.
Explanation:
SCLERENCHYMA
Sclerenchyma cells have thick, lignified secondary walls, lack cell contents at maturity, and occur throughout all plant tissues. These features make sclerenchyma tissues hard, rigid, and somewhat brittle. Sclerenchyma cells can occur as aggregates within ground tissue (sclereids or stone cells or as elongated fibers. In this context, sclerenchyma provides mechanical strength to stems (fibers in hemp and flax) and reproductive structures (the texture in pear flesh, the stony shells of nuts and cherry pits).
(Note that you can distinguish collenchyma cells from sclerenchyma cells because of the chemical composition of their cell walls. Different biological stains are attracted to either cellulose or lignin. Consequently, in the most common stain system, cellulose stains blue or green and lignin stains reddish or pink.)
Three characteristics of sclerenchyma tissue
(1) It provides mechanical stiffness and strength.
(2) Fibres and sclereids are main types of schelerenchyma.
(3) Most of the schelerenchyma cells show intrusive growth.
(4) Their cell walls have thickened secondary layers made from cellulose,, hemicellulose and lignin.
