Every organism is made up of cells, but what exactly is a cell? Life processes - Living processes - Cells Learning Points A cell is the most basic unit of life. Cells are the building blocks of all living things. There are many types of cells and each has a different function. A Twig Curriculum Film. Delivering key learning points. Get straight to the facts in just three minutes – directly linked to core learning, Twig's curriculum films will fit neatly into your lesson plans.