Introduction
- Cells are the major structural unit of an organ.
- Just as bricks are arranged together to make a building, similarly cell is arranged to make body of every organism.
- In 1665 Robert Hooke observed slices of cork under a magnifying instrument.
- Cork is a part of the bark of a tree. He detected compartments in the cork slice.
- He also noticed walls between two compartments which were actually dead cells.
https://youtu.be/Deo0-cS4gc8?list=PLAVY2tu_2M4jc2cGWGs2x49KuWsSk6pRE