Both the diagrams A and B given below are of Sclerenchyma tissue in plants, yet they look different. Why ?

Question

Question

This question was previously asked in

RRB Group D 13 Sept 2022 Shift 1 Official Paper

Answer 1

The correct answer is A - Longitudinal section; B - Transverse section.

Key Points

The difference in appearance of the two diagrams is due to the orientation of the tissue in each section.
In a longitudinal section, the tissue is cut along its length and appears elongated, while in a transverse section, the tissue is cut perpendicular to its length and appears circular.
Sclerenchyma tissue is a type of plant tissue that provides mechanical support to the plant.
It is composed of cells with thick, lignified cell walls.

Additional Information

Sclerenchyma tissue is divided into two types: fibers and sclereids.
- Fibers are elongated cells that provide tensile strength to the plant, while sclereids are shorter cells that provide compressive strength.
Lignin is a complex organic polymer that is deposited in the cell walls of sclerenchyma cells.
- It makes the cells rigid and waterproof, and gives them their characteristic woody texture.
Longitudinal sections are often used to study the internal structure of plant organs such as stems and roots, while transverse sections are useful for studying the arrangement of tissues in leaves and flowers.