Scientist
First person to use the term cells
Robert Hook
smallest unit of life
A cell
all organisms are composed of
cells
All organisms are composed of
cells
A group of cells makes what?
Tissues
he developed the use of microscopes
Anton van Leeuwenhoek
Cell made up of one cell
Unicellular
cells are basic units of
life
cells are the basic unit of
life
A group of tissues makes what?
Organs
proved all plant tissues are made of cells
Mathias Schleiden
Cell made up of two or more cells
Multicellular
These scientist’s ideas became known as the cell theory.
Robert Hooke, Theodor Schwann and Rudolph Virchow
All cells come from
pre-existing cells
A group of organs makes what?
organ system
Proved all animal tissues were made of cells
Theodor Schwann
Is a virus non-living or living?
non-living
The cell theory is a great contribution to
Science
All these ______ contributed to the cell theory
Scientists
A organ system make a what?
organism
Proposed that all cells come from the pre-existing living cells
Rudolph Virchow
this term is usually microscopic
cell
Name all 3 parts of the cell theory
1. The cell is the basic unit of all living things.
2. All organisms are made up of one or more cells.
3. All cells come from pre-existing cells.
What was an essential tool the scientists needed, in order to investigate?
microscope
A heart is a tissue
True or False
false