The Discovery of Cells Note-Taker
Cell theory video questions:
1. T or F Scientists can only make discoveries in a laboratory with white lab coats and science
gizmos that go beep.
2. Why do you think there were so many heated debates around the development of the cell
theory?
3. There are three parts to the cell theory. Which is NOT one of those parts?
A. All organisms are composed of one or more cells.
B. The cell is the basic unit of structure and organization in organisms.
C. Cells spontaneously arise from carbon and nutrients carried in the bloodstream.
D. All cells come from pre-existing cells.
4. Anton van Leeuwenhoek made his own version of the microscope and discovered
something very odd when he looked a the gunk on his teeth. What did he discover?
A. Cells
B. Bacteria
C. Cavities
D. Influenza
5. Who named the cell?
A. Robert Hooke
B. Robert Redford
C. Robert Smith
D. Robert DeNiro
6. Which scientist realized that, by studying samples under a microscope, all animals are made
up of cells?
A. Rudolf Virchow
B. Robert Remak
C. Theodor Schwann
D. Isaac Newton
7. If you could invent one "science gizmo," what would it be? Do you think your invention
would lead to any discoveries that would change our understanding of science?
8. Describe a time when collaboration worked well for you. Where there ever any
disagreements that led to a false assumption (like cells spontaneously crystallizing into
existence)?
The Cell Theory
A. The cell theory states:
1.
_______________________________________________________________
______________________________________________________________________
2.
_______________________________________________________________
______________________________________________________________________
3.
________________________________________________________________
_______________________________________________________________________.
How were cells discovered?

_______________________________________________

How do microscopes work?

produces an _________________ ____________________ of
something very small. (zooms in)

Most microscopes use lenses to magnify the image of an object by
focusing _____________________ or _________________________.
T-Chart: Create a T-Chart on page 35 of your notebook, Use the Biology book pages 191-192 to
identify the various technology used to see cells and their structures and the benefits of each.
Technology
Benefits
The Discovery of Cells Note-Taker
The Parts of a Microscope:
How to use & focus a microscope:
1. Determining magnification:
________________________ x ________________________ =Magnification
2. Using the microscope:
A. Put the microscope slide on the ___________________________, and secure with the
_________________________________.
B. Adjust the _________________________ to change the amount of light coming
through your specimen.
C. To focus your image:
a. without the slide being on the stage, turn the nosepiece to the
_______________ magnification.
b. Wind the coarse adjustment knob until the stage is as _____________ or high
as it can be to the objective lens.
c. Put the slide onto the stage, secure with stage clips
d. Slowly turn the _________________ adjustment knob, away from you, so the
stage moves down, until you get a rough image.
e. Use the _______________, fine focus, knobs to get the image to become clear.
f. To focus on a higher magnification, simply ____________________ the
nosepiece to the next longest ________________________________.
g. Use the ______________________ focus knob (small knob) to bring the image
into focus.
Prokaryotes and Eukaryotes

Eukaryotes (yoo kar ee ohts)

are cells that enclose their DNA in ____________________________.

Prokaryotes (pro kar ee ohts)

are cells that ___________________________ enclose DNA in nuclei.
All cells have the following parts:

_____________________________________

_____________________________________

_____________________________________

_____________________________________