Cell and Tissue

Cells are the smallest and most basic component of any living organism . Cells help in performing each and every function in a living organism. There are many types of organisms , some of them are single-cellular, this means that they only have one cell in their entire body. Some of the organisms are also multicellular , which means they have more than one cell and these cells tend to have different functions for various bodily functions.

Examples of unicellular organisms are bacteria, fungi etc.

Examples of multicellular organisms are, animals, human beings etc.

Tissues are groups of cells which perform a similar function. Usually tissues have similar functions to the cells which make up the tissue. Secondly, due to the tissue formed by similar cells it also shows structural similarity.

Different types of cells

The different types of cells are as follows :-

• Prokaryotic cells – Any cell which does not have a distinct nucleus and a few other organelles because there is an absence of internal membranes of the cell
• Eukaryotic cells – The cells with a well enclosed nucleus within a nuclear membrane can be called an Eukaryotic cell

Different types of tissues

There are different types of tissues based on their functions which are as follows :-

• Muscle Tissues – These tissues combine together to form muscles in a human body for Eg:-cardiac muscle, skeletal muscle etc
• Nervous Tissues – These tissues together form the nervous system. Eg:- brain, spinal cord etc
• Connective Tissues – The main purpose of these tissues is to connect various body parts with each other. Eg:- bones, tendons etc
• Epithelial Tissues – The epithelial tissue provides layers of protection for the skin, reproductive tract etc

Differences between cells and tissues

Definition

Cells can be defined as the smallest units of structure and functioning for an organism. Cells are generally microscopic in nature.

Tissues are made up of a group of similar cells and each and every tissue has its distinct function.

Presence

Cells are present in both unicellular organisms such as bacteria, as well as multicellular organisms such as animals and the human body.

Tissues are not found in unicellular organisms and are only found in multicellular organisms. For eg:- muscles in a human body are made with muscle tissues.

Size

Cells are microscopic in size.

Tissues are macroscopic in size. This means tissues are visible through a person’s naked eye.

Composition

Cells comprise various cell organelles such as the nucleus, Golgi bodies, vacuoles, etc.

Tissues are made up of cells which perform the same function for the body.

Types

Cells have two types , which are eukaryotic and prokaryotic cells.

Tissues are mainly of 4 types, Epithelial, connective, nervous and muscle tissues.

Regeneration /Reproduction

Cells are produced by the cell division processes of mitosis and meiosis .

After the regeneration of cells new tissues would obviously be formed but it is mainly repaired by the processes of fibrosis and regeneration.

Functions

The general functions of the cells are regarding growth of the body, handling metabolism and related processes along with reproductive functions.

Tissues have a specified set of functions . This is so because of the similar cells forming a group to make a tissue.

Conclusion

Cells may be the initial units of the body but tissues are an integral part of a body too. Cells and tissues are interconnected as many cells together form a tissue. Tissues can be repaired whereas some cells, even if they can repair themselves, also have the option to reproduce by cell division.