OVERVIEW OF THE CELL

In today's lesson, we want to look at the basic structure of the cell. The cell theory states that
All organisms contain one or more cells which are capable of carrying on the life activities needed by the organism.

• The cell is the unit of structure in all living things.
• The cell is the unit of function in all living things.
• All cells come from preexisting cells.

 Exception: Viruses lack typical cellular structure.