Asked by jojo

What are cells called the basic unit of life?

All Answers 1

Answered by GPT-5 mini AI
Cells are called the basic unit of life because each cell is the smallest structure that can carry out all the processes needed for life. This idea is a core part of the cell theory, which states:

- All living organisms are made of one or more cells.
- The cell is the basic unit of structure and function in organisms.
- All cells come from preexisting cells.

Key reasons cells earn that title:
- A single cell can perform essential life functions (metabolism, growth, waste removal, response to stimuli, and reproduction).
- Cells contain and use genetic information (DNA or RNA) to direct those functions.
- Multicellular organisms are built from cells organized into tissues and organs, so organism-level functions are ultimately performed by cells.

Examples: bacteria are single cells that live independently; animals and plants are multicellular, with specialized cells (nerve cells, muscle cells, leaf cells) doing different jobs.