Cell Theory Flashcards
The cell was discovered in 1665. He discovered a multitude of tiny pores that he named cells.
Robert Hooked
This came from a Latin word cella, meaning “a small room” like where monks lived in and also cellulae, which means the six cells of a honeycomb.
Robert Hooked
First to observed living organisms
Anton Van Leeuwenhoek
In 1697, he stated that motility is a quality of life, therefore, these motile objects were living organisms.
Anton Van Leeuwenhoek
Leeuwenhoek named these “________” which included protozoa and other unicellular organisms, like bacteria.
Animalcules
One of the basic principles of biology
Cell Theory
In 1838, he suggested that every structural part of a plant was made up of cells or the result of cells.
Matthias Jakob Schleiden
In 1839, he stated that along with plants, animals are composed of cells or the product of cells in their structures.
Theodor Schwann
In 1855, he stated “Omnis cellula e cellula” which means “All cells only arise from pre-existing cells”
Rodulf Virchow
All cells only arise from pre-existing cells
Omnis cellula e cellula
The three tenets of cell theory
All living organisms are composed of one or more cells.
The cells is the most basic unit of life.
All cells arise only from pre-existing cells.
The evolution of cell theory in today, additional to three tenets of cell theory
Energy flow (metabolism and biochemistry) occurs within cells.
All cells are basically the same in chemical composition in organisms of similar species.
Heredity information (DNA) is passed on from cell to cell.
