Cell Structure and Levels of Organization

Apuntes

The Cell as the Basic Unit of Life Page 1 of 8 THE CELL AS THE BASIC UNIT OF LIFE All living organisms are made up of cells. The cell is the basic unit of life. It is the basic building block of all organisms. There has been an evolutionary development of unicellular life forms into multicellular life forms. Organisms may be unicellular i.e., made up of one cell or multicellular i.e., made up of many cells. In multicellular organisms many cells of the same kind interconnect with each other and perform a shared function to form tissues (e.g., stomach muscle). Many tissues combine to form an organ (e.g., stomach). Many organs make up an organ system (e.g., digestive system). Unicellular Organisms Multicellular Organisms Ms. Naomi Vella The Cell as the Basic Unit of Life Page 2 of 8 Draw lines to match the different levels of organisation with their respective functions and examples. Organelle Cell Tissue Organ System A component inside a cell that carries out a specific task. The basic functional unit of living organisms. A collection of similar cells (cells of the same kind) carrying out a shared function. A collection of different tissues that work together to perform a common func...