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    Introduction to Cell Biology




    The cell is a basic structural and functional unit of life. It is the basic unit that makes a life. Every living organism from bacteria to mammals is made up of the cell. The cell is the reason how an organism is able to survive. The group of cells is known as tissue.

    Cell biology is a study of the basic unit of life, cell. It is a study of their functions and the subcellular processes. It is a study about the normal working of the cell in a body and how an abnormality can lead to a disease. It is the study in which various cells from different organisms are studied in detail.

    There are various kinds of cells. They all differ in the material that is present inside it. Almost all the cells have genetic material, cytoplasm, and a cell membrane. There are various types of cell organelles like mitochondria, ribosomes, Golgi apparatus. Different types of cells have the difference in the structures that are present inside it.

    Some organisms are made up of only one cell and hence, are named unicellular organism e.g. Amoeba. All the necessary functions are carried by that one cell. Bacteria’s are mostly unicellular. On the other hand, the human body is made up of trillions of cells. All the cells work together to carry out the bodily functions. Hence, the human is known as a multi-cellular organism.
    The basic criteria on which the organisms are divided are on the basis of the cell. The cells are basically grouped into two types- Prokaryotic and Eukaryotic cells.

    Prokaryotic cells are found in plants whereas, Eukaryotic cells are found in animals, some plants, and fungi.

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