Question

What are the types of simple tissue?

Answer 1

Hint: A tissue is a collection of cells and extracellular matrix from the same origin that work together to perform a defined function. Multiple tissues are then functionally grouped together to form organs.

Complete answer:
There are three types of simple tissues: parenchyma, collenchyma, and sclerenchyma.
Tissues that have stopped growing are known as permanent tissues. These problems can be found in both primary and secondary meristematic tissues, and they have a distinct structure and organisation. They do not, however, have the ability to divide.
Parenchyma - This tissue's cells are alive and have thin cell walls. The form of the cells can be oval or round. They feature a thick cytoplasm and a big central vacuole. The soft sections of the plant, such as the cortex and pith, include parenchyma tissue. Its primary function is to act as a packing tissue and provide mechanical support. It also aids in the preservation of food. Aerenchyma and Chlorenchyma are two types of parenchyma that are classified based on their functions.
Collenchyma - These cells have an extended form and are alive. The cell wall's corners have thickened. There is only a small amount of intercellular space. The collenchyma tissue can be found in leaf stalks, beneath the epidermis, and other places. Its major purpose is to give the plants flexibility as well as mechanical support.
Sclerenchyma - The sclerenchyma tissue's cells have died. Due to lignin deposition, the cell wall is extremely thick. This tissue's cells come in a variety of forms and sizes. They can be found in the veins of the leaves, the hard coverings of the seeds, and the area surrounding the vascular bundle. The sclerenchymatous tissue's primary role is to provide rigidity and mechanical support to the plant body. They also stiffen and harden the plant.

Note: The cells that make up the permanent tissue are also fully differentiated. The cells are massive and uniform in size and shape. Intercellular gaps can be seen in the spaces between the cells. Inside these cells, there are also large vacuoles. The metabolism in the cells of permanent tissue occurs at a much slower rate.