BIOLOGY NOTES
Life is Cellular (CHP 7-1)
Name____________________________
Date_________________P_____
KEY CONCEPT: _____________________________________________________________________.
History of Discovering the Cell
1. The ______________ grew out of the work of many scientists and improvements in the ______________.
Complete the following chart to highlight the observations and conclusions that helped develop the cell theory:
When
(Year)
Late
1500s
Who / Where
Observations / Conclusions
Picture
Italy
1600s
Holland
1665
1674
Used a compound microscope to look at thin
sections of cork. He called these chambers
“______” because they reminded him of a
monastery’s tiny rooms.
Anton van
Leeuwenhoek
1838
Concluded that all _________ are made of _______
1839
1855
Concluded that all _____________ are made of
______________.
Rudolf
Virchow
Observed _____________________ and concluded
that _____________ could only be produced by
division of _______________.
The Cell Theory
These discoveries, confirmed by many biologists, are summarized in the CELL THEORY...
2. The Cell Theory has three principles:
I. _________________________________________________________________________________
II. _________________________________________________________________________________
III. _________________________________________________________________________________
Types of Cells
3. Cells fall into two broad categories, depending on whether they contain a ____________.
a. Nucleus: ________________________________________________________________________
________________________________________________________________________
b. Prokaryote: __________________________________________
c. Eukaryote: ___________________________________________
4. Both Prokaryotes and Eukaryotes:
a. Come in a variety of _______________ and ________________.
b. Cells tend to be ______________________.
c. All cells are _________________ by a __________________.
d. All cells are filled with ______________________.
Cell Type
Characteristics
Picture
Have a ______________.
Eukaryotic
Have dozens of _______________ and internal ___________.
Plants, __________, fungi, and _____________ are eukaryotes.
Do not have a _____________.
Prokaryotic
Do not have membrane-bound ______________.
_____________ are prokaryotes.
Cell Types – Similarities and Differences:
Prokaryotes
Eukaryotes
 Genetic material ______________________
 Genetic material _______________________
____________________________________
_____________________________________
 ________________ membrane bound
 _____________ membrane bound organelles
organelles
 ___________, ____________, _________,
and __________.
 ______________
Similarities – Both prokaryotic and eukaryotic cells:
1. ____________________________________
2. ____________________________________
3. ____________________________________
4. ____________________________________
Plant and Animal Cells
5. Both plant and animals contain a variety of _______________.
a. Organelles: _____________________________________________________________________.
6. Some structures are specific to either _________ cells or ___________ cells only.
 What structures do plant cells have that animal cells do not?
o _________________ Function: ___________________________________________
o _________________ Function: ___________________________________________
Assignment: Next to each description identify if it’s a prokaryote or eukaryote by writing it in the box:
Item
Prokaryote or Eukaryote?
Has a nucleus
Bacteria are an example
Is generally smaller than the average cell
Can be multicellular or unicellular
A mushroom is an example
A dog is an example
A rose is an example
Has many complex organelles
Does not have a nucleus
Humans are an example of
Generally larger than the average cell