write this heading: cell theory timeline
DESCRIPTION
Write a heading in your notebook… The Cell Theory 1. 2. 3.TRANSCRIPT
![Page 1: Write this heading: Cell Theory Timeline](https://reader036.vdocuments.us/reader036/viewer/2022062412/5a4d1ad97f8b9ab059974116/html5/thumbnails/1.jpg)
Write this heading: Cell Theory
Timeline
![Page 2: Write this heading: Cell Theory Timeline](https://reader036.vdocuments.us/reader036/viewer/2022062412/5a4d1ad97f8b9ab059974116/html5/thumbnails/2.jpg)
Write a heading in your notebook…
The Cell Theory1.2.3.
![Page 3: Write this heading: Cell Theory Timeline](https://reader036.vdocuments.us/reader036/viewer/2022062412/5a4d1ad97f8b9ab059974116/html5/thumbnails/3.jpg)
Cell Theory – write in your notebook
1. All living things are made of cells.2. Cells are the basic units of structure
and function in living things. (structure = form; function = purpose)
3. Living cells only come from other living cells.
![Page 4: Write this heading: Cell Theory Timeline](https://reader036.vdocuments.us/reader036/viewer/2022062412/5a4d1ad97f8b9ab059974116/html5/thumbnails/4.jpg)
Concept #1- A polarbear is made up ofmany cells!
Concept #2- Different cells ina polar bears body doesdifferent jobs. Example: Fatcells provide insulation andenergy, while red blood cellscarry oxygen.
Concept #3- All polar bearscell came from a single livingcell. They divide and theygrow to replace old dead cells!
Read each box.
![Page 5: Write this heading: Cell Theory Timeline](https://reader036.vdocuments.us/reader036/viewer/2022062412/5a4d1ad97f8b9ab059974116/html5/thumbnails/5.jpg)
Read: Cell Theory Concept #3: Living cells only come from other living
cells. People believed that maggots mysteriously appeared on
decaying meat. Some thought that the meat actually created maggots.1. Redi placed meat in two identical jars. He left one
jar uncovered and allowed flies to come into contact with the meat. He covered the other jar with a cheese cloth or other cloth that allowed air to pass through. Contact with the air allowed the meat to decay, just as the other would.
2. After a short period of time Redi observed maggots (fly larvae) on the decaying meat of the open jar. There were no maggots on the meat in the covered jar
3. Redi concluded that the flies laid eggs on the meat in the open jar which caused the maggots
Controlled Experiments were born
![Page 6: Write this heading: Cell Theory Timeline](https://reader036.vdocuments.us/reader036/viewer/2022062412/5a4d1ad97f8b9ab059974116/html5/thumbnails/6.jpg)
Taking Notes• In order to complete your timeline notes…– Write notes about the following scientists
• 1 Aristotle• 2 Zacharias and Hans Jansen• 3 Robert Hooke• 4 Anton van Leeuwenhoek• 5 Matthias Schleiden• 6 Theodor Schwann• 7 Rudolph Virchow
– Write down their name, date, and the main ideas of what they did.
![Page 7: Write this heading: Cell Theory Timeline](https://reader036.vdocuments.us/reader036/viewer/2022062412/5a4d1ad97f8b9ab059974116/html5/thumbnails/7.jpg)
Aristotle• 334 B.C.• Aristotle observed nature directly. • He classified all known organisms as
either plants or animals.
![Page 8: Write this heading: Cell Theory Timeline](https://reader036.vdocuments.us/reader036/viewer/2022062412/5a4d1ad97f8b9ab059974116/html5/thumbnails/8.jpg)
Hans & Zacharias Janssen• In 1595• Hans & Zacharias Jansen produced
the first compound microscope by lining up 2 lenses.
![Page 9: Write this heading: Cell Theory Timeline](https://reader036.vdocuments.us/reader036/viewer/2022062412/5a4d1ad97f8b9ab059974116/html5/thumbnails/9.jpg)
Robert Hooke• 1665• Robert Hooke observed a microoganism,
the microfungus Mucor (cork cells) through a compound microscope, which reveals empty cells.
• He is the first to call the spaces in the cork “cells” which means little rooms.
![Page 10: Write this heading: Cell Theory Timeline](https://reader036.vdocuments.us/reader036/viewer/2022062412/5a4d1ad97f8b9ab059974116/html5/thumbnails/10.jpg)
Anton van Leeuwenhoek• 1675• Anton van Leeuwenhoek observed
living cells (bacteria) through a simple microscope.
![Page 11: Write this heading: Cell Theory Timeline](https://reader036.vdocuments.us/reader036/viewer/2022062412/5a4d1ad97f8b9ab059974116/html5/thumbnails/11.jpg)
Matthias Schleiden• 1838• Matthias Schleiden discovered that plants
were made of cells.
![Page 12: Write this heading: Cell Theory Timeline](https://reader036.vdocuments.us/reader036/viewer/2022062412/5a4d1ad97f8b9ab059974116/html5/thumbnails/12.jpg)
Theodor Schwann• 1839 • Theodor Schwann states “all animals
are made of cells.”
![Page 13: Write this heading: Cell Theory Timeline](https://reader036.vdocuments.us/reader036/viewer/2022062412/5a4d1ad97f8b9ab059974116/html5/thumbnails/13.jpg)
William Henry Perkin• 1856• William Henry Perkin develops an intense
purple dye, which is used to stain microscope slides, shows more details.
![Page 14: Write this heading: Cell Theory Timeline](https://reader036.vdocuments.us/reader036/viewer/2022062412/5a4d1ad97f8b9ab059974116/html5/thumbnails/14.jpg)
Rudolph Virchow• 1858• Rudolph Virchow states…
– “Cells are the last link in a great chain that forms tissues, organs, systems, and individuals. Where a cell exists, there must have been a preexisting cell.”
• Cells can only arise from pre-existing cells
![Page 15: Write this heading: Cell Theory Timeline](https://reader036.vdocuments.us/reader036/viewer/2022062412/5a4d1ad97f8b9ab059974116/html5/thumbnails/15.jpg)
Create a timeline!
• Use your notes from today and your handout on the Cell Theory Timeline.
• Write dates on the timeline, and major events above and below it.
• Include a brief detail of what happened, and a picture to help remember it.