* Fundamental Unit: Cells are the smallest unit of life that can carry out all the processes necessary for life.
* Building Blocks: All living organisms, from single-celled bacteria to complex humans, are made up of one or more cells.
* Self-Sustaining: Cells can perform essential life functions like:
* Metabolism: Producing energy and breaking down nutrients
* Growth and Reproduction: Increasing in size and creating new cells
* Response to Stimuli: Reacting to changes in their environment
* Homeostasis: Maintaining a stable internal environment
So, while there are many other important components of life (like DNA, proteins, and water), cells are the fundamental building blocks and the basis for all living things.