Question

Match List - I with List - II.


$\begin{array}{cccc}& \text{List - I}& & \text{List - II}\\ \text{(a)}& \text{Cells with active cell}\text{division capacity}& \text{(i)}& \text{Vascular tissues}\\ \text{(b)}& \text{Tissue having all cells}\text{similar in structure}\text{and function}& \text{(ii)}& \text{Meristematic tissue}\\ \text{(c)}& \text{Tissue having}\text{different types of cells}& \text{(iii)}& \text{Sclereids}\\ \text{(d)}& \text{Dead cells with highly}\text{thickenend walls and}\text{narrow lumen}& \text{(iv)}& \text{Simple tissue}\end{array}$

Select the correct answer from the options given below.

Answer 1

A group of cells having a common origin and usually performing a common function is known as a tissue.
Plant tissues are classified into the following two groups based on whether the cells being formed are capable of dividing further or not:

1. Meristematic tissue:
They are found in the growing regions of the plant like the root and the shoot tips and undergo active cell division.`

2. Permanent tissues:
The cells of the permanent tissues generall do not undergo further divisions. It is further divided into two types:
a. Simple tissues - They have all cells similar in structure and function. Example - Parenchyma, Collenchyma and sclerenchyma.
b. Complex tisuses - They are made up of many different types of cells. Example - Vascular tissues like xylem and phloem.

The sclereids are a type of sclerenchyma which are spherical, oval or cylindrical, highly thickened dead cells with very narrow cavities (lumen).