Intro to Cells (Answer Key) Flashcards | Quizlet Cells are the functional units of living things 3. Cells are made from other cells Cells are "made" from other cells. What does this mean? cells are not made from scratch. The process of mitosis/cell division allows for more cells to be made What are the four components found in all cells? 1. Genetic material (DNA) 2. Cytosol 3. Cell membrane 4.