Name _________________________________
Date __________ Period __________
The Cell Theory: Types of Cells Notes
KEY CONCEPT Cells are the ________________________________________________________________.
 The cell theory grew out of the work of _____________________________ and improvements in the
________________________.
 Many scientists contributed to the cell theory.
a. ________________________ (1665) identified and named cells
b. ________________________ (1674) observed living cells,; could see greater detail due to better
lenses
c. ________________________ (1838) notes that plants are made up of cells
d. ________________________ (1839) concluded that all living things are made up of cells
e. ________________________ (1855) proposed that all cells come from other cells
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The cell theory grew out of the work of many scientists and improvements in the microscope.
_________________________________, specifically in ________________, enabled us to learn
more about cells.
The cell theory is a unifying concept of biology. Meaning __________________________________
__________________________________ is based on the cell theory.
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Early studies led to the development of the cell theory.
The Cell theory has three principles.
- All organisms are _________________________________________________________________.
- All existing cells are produced by ____________________________________________________.
- The cell is the ____________________________________________________________________.
All cells share certain characteristics.
a. Cells tend to be ________________________.
b. All cells are enclosed by a ________________________. (aka plasma membrane)
c. Have ________________________ (make proteins)
d. All cells are filled with ________________________.
e. Have ______________________________________________ - stored as DNA
There are two cell types: ________________________ cells and ________________________ cells.
1. Eukaryotic cells
a. Eukaryotic cells _______________________________________________. (This is where their
DNA or genetic information is located)
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b. They have membrane- bound ________________________ (structures with a specific function in
the cell.)
c. Both prokaryotic cells and eukaryotic cells have _________________, ____________________,
_____________________and a ________________________.
d. Found in _______________, _______________, _______________ and _______________.
e. Prokaryotic cells have a cell wall (________________________________________ surrounding the
cell membrane which provides __________________________________________________________).
Only some eukaryotic cells have a cell wall (some protists, plants, and animals)
f. Eukaryotic cells are make up all ____________________________________ and can be found in some
____________________________________ (some members of kingdom Protista)
2. Prokaryotic cells
a. Prokaryotic cells ________________________________________________. Their DNA (genetic
information is in the cytoplasm)
b. Prokaryotic cells ________________________ membrane-bound ________________________.
(This is why prokaryotic cells are much smaller than eukaryotic cells. They have
___________________________________ and perform __________________________________.)
c. Found in _________________________
Label the parts of the Prokaryotic and Eukaryotic Cell
Prokaryotic and Eukaryotic Review
Compare and contrast the Prokaryotic and Eukaryotic Cell by creating a venn diagram. Use the facts presented
below to create your venn diagram. (Do this on a blank sheet of paper)
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Unicellular only
Microscopic
Some multicellular and some unicellular
Bacteria
Plants, animals protists and fungi
Cell membrane aka plasma membrane
Does not have organelles
Nucleus
Ribsomes
(Nuclear DNA) DNA in a nucleus
(Cytoplasmic DNA) DNA in cytoplasm
Can not be seen with the naked eye
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Cytoplasm
Has organelles
Make up living things
Reproduce
Homeostasis
Respond to environment
Can die
Make proteins
No nucleus
Flagella
Cell wall
Unicellular only
Microscopic
Some multicellular and
some unicellular
Plants, animals protists
and fungi
Cell membrane aka plasma
membrane
Does not have organelles
Nucleus
Bacteria
Ribsomes
Make up living things
(Nuclear DNA) DNA in a
nucleus
(Cytoplasmic DNA) DNA in
cytoplasm
Can’t be seen with the
naked eye
Cytoplasm
Has
organelles
Reproduce
Homeostasis
Respond to environment
Can die
Make
proteins
No nucleus
Flagella
Cell wall