Wednesday, 5 September 2012

Outline of Cell Theory

The invention of microscopes in the 17th century lead to the discovery of cells: Robert Hooke first coined the term 'cell' after observing the structure of cork and other plant tissues in 1655.
In 1674 Anton van Leeuwenhoek made the first observation of single-celled organism (microorganisms)And in 1838 Schleden and Schwann developed the Cell Theory:
  • Cells are the smallest unit of life and nothing smaller can survive independentally
  • All living things are made of cells
  • Existing cells have come from other cells

(Source: , IB Biology Course Companion)