Click through the slides to discover the cell theory

1. The CDC needs your help. A deadly virus is sweeping
the US. It is attacking parts of cells and killing its
victims in a matter of hours. Make the right choices
and save the world. Research the topics and proceed
with caution. Click the icon to continue:

2. A virus is very simple. It consists of RNA and a protein shell. The virus will enter a
person and use cells to manufacture more viruses. As the new viruses fill up the
cells the cells burst. This particular virus is only attacking parts of a cell. To
understand how to stop it we must first begin to understand cells.

3. Just how big are cells?
Click the following link to learn about
the size of cells. As you slide the bar to
see smaller images remember that a
meter is 39 inches!
Research cell size here:
http://learn.genetics.utah.edu/conten
t/cells/scale/
How big are human skin cells? Click and follow the link
10micrometers 30micrometers 300micrometers

4. Hi
I was bon in Zurich and went
to the university of Berlin. I
mostly studied animals with
out backbones , also called
invertebrates.
WhatWhat did you
study?

5. CHARACTERISTICS OF LIFE
All living things have some distinct characteristics. What are the characteristics of al l
living things? Do some research on the characteristics of life . Are cells alive?
http://infohost.nmt.edu/~klathrop/7characterisitcs_of_life.htm
Which characteristic best answers the question?
Number 1 Number 3 Number 6

6. These are human skin cells. They are too small to see with you eyes, but you can
see them with the help of a microscope. Click the icon to continue:

7. Hi
I am Theodor Schwann. I’m
glad to hear that you are
interested in cells! I was alive
at a thrilling time! People
were discovering so many
things as a result of the
discovery of the microscope.
What
I’m investigating for the
cells for the CDC. What
is your name?

8. Amoeba cells are large. Close to 500 micrometers. You need to do better research!
Click the link to continue

9. INCORRECT. YOU NEED TO DO CAREFUL
RESEARCH. WE CAN’T AFFORD THESE
ERRORS!

10. Once cells were
discovered…you won’t
believe what happened next!
People started wondering why cells
are significant. This curiosity led to
many people interested in simply
observing cells. People began to
discover cells all around them,
including in a drop of pond water.
Carefully observe the organisms in this
drop of pond water. What conclusions
can you make?
All living things are made of
cells
Some living things are made
of cells

11. INCORRECT! HE DID SEE LIVING THINGS,
BUT NOT THE FIRST CELLS. WE CANNOT
HAVE TOO MANY SET BACKS! READ
MORE CAREFULLY!

12. Red Blood cells are small. Close to 10 micrometers. You need to do better research!
Click the link to continue

13. Hi
I was using a microscope and
looking at some cells and
you will never believe what I
saw there
What
Did you discover
anything about
cells?

14. If cells are so small how
can we see them?
Research the invention of the
microscope. As you read about the
microscope reflect on how technology
is important to scientific discoveries.
Follow this link to research the
microscope. Pay close attention to the
events from 1590-1931
http://sciencelearn.org.nz/Contexts/Ex
ploring-with-Microscopes/Timeline
Who first used a microscope to view cells?
Robert
Hooke
Ernst
Abbe
Antonie
Van
Leeuwenhoek

15. Hi
First, that all living things are
made of cells, Second, that
cells are the basic unit of
structure and function in
living things and finally, that
new cells come from other
living cells. Click the
biohazard icon to continue.
What
What do you know
about the cell theory?

16. Which microscope should
I use?
You are about to investigate cells.
Thankfully, we have the technology to
be able to look at cells through a
variety of microscopes. But which
microscope is best for the job that we
have of identifying cell parts? Research
the various types of microscopes and
decide which one your would purchase
for your research on cell parts.
http://sciencelearn.org.nz/Contexts/Ex
ploring-with-Microscopes/Sci-
Media/Interactives/Which-microscope
stereomicroscope Compound
microscope
Confocal laser
scanning SEM
CryoSEM Electron
tomography
TEM

17. THE CELL THEORY
The cell theory includes a statements of several facts about cells and the role
they play in biology. Investigate the cell theory time line and write down the
principle parts of the theory, who contributed to it and when the occurred.
http://www.softschools.com/timelines/cell_theory_timeline/96/
Who would you want to interview to find out more about the cell theory?
Kolliker Brown Schwann

18. CORRECT! Hooke first used a microscope to view cork cells. Even
though the cells were from a dead part of wood he
recognized that they were important to all living things. He
thought they looked like the rooms in a monastery, so he
called them “cells”. They may remind you of the cells in a
jail! Click the link to continue.

19. Hi
Guten Tag! My name is
Albert.
And I helped to discover
some
important things about cells.
Click the biohazard icon to
continue

20. Congratulations!
You are now familiar with the tools to view cells
and the cell theory.
As you learn about the cell parts keep in mind
what they do and how this deadly virus would
impact a person if their cells lost that function.

21. Hi
I am glad that you are
investigating cells. If there is
any other way I can help, Let
me know.
What
Well ,thank you for
your time and for
the information.

22. Hi
I helped to discover some
new techniques for using
microscopes. I also found out
that sperm and eggs are
actually cells!
WhatWhat can you
tell me about
the cell theory?

23. Hi
Great! My name is Robert
Brown. I was so excited
about the scientific advances
during the early 1800’s. I am
glad to be a part of your
investigation
What
Hello. I am doing
some interviews
about cells

24. Good Choice! Now that we
have the right equipment,
what can we use it to find
out?
The virus that we are researching has
some interesting characteristics. One
thing is that this virus only targets
eukaryotic cells. But what are
eukaryotic cells and how are they
different than prokaryotic cells?
Compare the differences between
these two cells types.
http://www.life.umd.edu/classroom/b
sci424/BSCI223WebSiteFiles/Prokaryot
icvsEukaryotic.htm
You are looking through your microscope at a cell. You notice that
the cell has a distinct nucleus. What type of cell is it?
Prokaryotic Eukaryotic

25. Hi
I saw this dark spot in the
center. I didn’t know what
else to call it so I called it a
nucleus.
Click the biohazard icon to
continue.
What
What did you see?

26. Hi
I used a microscope to
discover that humans and
animals are made entirely of
cells. It was amazing to see
that humans are actually
made of these smaller
building blocks!
What
Did you discover
anything about cells?

27. What are Eukaryotic cell
like?
By now you may have realized that both plant and animal cells are eukaryotic. Both have a distinct nucleus.
How can you tell the difference between a plant and a animal cell? If you are looking at a cell through the
microscope how can you tell what kind of cell it is? Do some research on the differences. How can you tell if
you are looking at an animal cell?
http://www.cellsalive.com/cells/cell_model.htm
Which is the animal cell?