Just like how animals are birthed through other preexisting animals, cells are created from other preexisting cells. (Virchow)
Rudolf Virchow added to the part of the cell theory that states that cells come from preexisting cells.
All plants are composed of cells. (Schleiden)
Schleiden concluded that all plant tissues are composed of cells. He also contributed to the parts of the cell theory that state cells are the basic unit of structure and function.
All animals are composed of cells. (Schwann)
Schwann contributed to the creation of the cell theories, strongly contributing to the part that states that all living things are composed of cells.
Robert Brown contributed to the part of the cell theory that states that all living things are composed of cells.
Cells contain a nucleus. (Brown)
The little blocks look like cells, they should be called cells. (Hooke).
When looking at cork through a microscope, Robert Hooke discovered that the cells he saw were in shapes alike to prison cells, which is why he called them cells. He also wrote the book "Micrographia" which contains information about cells.
Schleiden and Schwann worked together to create the cell theory.
Over 30 Million Storyboards Created
No Downloads, No Credit Card, and No Login Needed to Try!