Question

Can you consider a cluster of eggs as a tissue ? why?

Answer 1

Hint: The word tissue derived from the word tissue which means that something that is woven. The germ tissue was introduced by Xavier Bichat in 1801. He was the one who first proposed tissue.

Complete Answer:
A tissue is a group of cells, in close immediacy, prearranged to perform one or more specific functions. In biology it is a cellular organizational level between cells and a complete organ. The study of human and animal tissue is known as histology. When it comes in connection with disease it is called histopathology. The classical tools which are used for studying the tissue are called paraffin blocks, in which tissues are embedded and then sectioned.
Tissues are mainly classified into four categories based on their structural and functional similarities.

These classification include the following:
1. Epithelial tissue: It refers to a group of cells that cover the exterior surface of the body. They line the internal cavities and passageways, and help to form certain glands.
2. Connective tissue: Connective tissue binds to the cells and organs of the body together
3. Muscle tissue: It contracts forcefully when excited, and it provides the movement.
4. Nervous tissue: It is also excitable and it allows the generation and propagation of electrochemical signals in the form of nerve impulse and it communicates between the different regions of the body.
Tissue membrane which is a thin layer of sheet of cells which sometimes covers the outside the body or lines the internal cavity.
So we can conclude that tissue is a group of cells having a common origin and also they perform a common function. A cluster of eggs is not a tissue because each egg has individual function and they don’t function as a group.

Note: Tissues are very important because it helps in the identification of progression of disease and to determine prognosis and to identify the best treatments for different diseases.