The five functions common to all cells include nutrient uptake, reproduction, growth, waste removal and reacting to external changes. All living things are made up of cells, which serve as the basic building blocks of life, and all cells have a purpose in a living organism.
All cells have a membrane, which is the outer layer that holds the cell together. Cell membranes allow nutrients to pass through the cell while allowing waste products to pass out of the cell. Because of its semi-permeable characteristic, the cell membrane allows the entry and exit of only certain materials, depending on the size of the particle.
The nucleus is the cell’s control center, and it contains the information that allows the cells to reproduce. The nucleus allows the cell to divide and generate more cells for growth. The mitochondrion is another crucial part of the cell, and it is where food and oxygen combine to produce energy.
Most living organisms, including larger plants and animals, consist of a large number of cells and are classified as multicellular organisms. Unicellular organisms, however, are made up of a single cell. Cells are the smallest living units with the ability to reproduce themselves. The functioning of the cells is what explains the workings of the body, and different cells perform different functions. Cells that perform the same functions combine to form body tissues, such as skin, muscle and bone tissue.