Name KEY
Date ___________
Page _____
Notes – Cell Theory
Influential Scientists
1. Matthias Jakob Schleiden (1804 – 1881)
2. Theodor Schwann (1810 – 1882)
3. Rudolf Virchow (1821 – 1902)
Cell Theory
1. “The cell is the basic unit of life.”
2.
“All living things are made up of one or more cells.”
3.
“All cells develop only from existing cells.”
The scientific theory that describes the properties of
cells
Cell Theory Definition
Important Facts about Cell
Theory
1. cells come from pre-existing cells by division
2. The activity of an organism depends on the total
activity of independent cells.
3. Energy flow occurs within cells.
4. Cells contain hereditary information (DNA) which is
passed from cell to cell during cell division.
5. Plants and animals consist of combinations of these
organisms which are arranged in accordance with
definite rules.
Prokaryote Cells
Eukaryote Cells
Now…
1.
Cells DO NOT have cell membrane around nucleus
2.
Usually very small
3.
Example: Bacteria
1.
Cells that have membrane around nucleus
2.
Usually larger and more complex than prokaryotes
3.
Examples: plant cells, animal cells and fungi
1) Write a song using all the information above about the cell theory. Your song may be to the
tune of a song that is familiar to you such as “Mary Had a Little Lamb”, “Row, Row, Row Your
Boat”, “Three Blind Mice”, etc.
2) You will write this song with your lab team members! Use the bottom of this paper to
record your final ditty!
3) Groups can perform their song tomorrow for extra credit tomorrow. You have today to work
on it, then you all will perform for the class! Every member of your team must be singing. Hand
motions are a plus 
4) Get started!
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