Discoveries of the Cell Theory Copyright 2015 All

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Discoveries of the Cell Theory © Copyright 2015 – All rights reserved. www. cpalms.

Discoveries of the Cell Theory © Copyright 2015 – All rights reserved. www. cpalms. org

Romans Anton Van Leeuwenhoek What is a Theory? When Romans discovered they were able

Romans Anton Van Leeuwenhoek What is a Theory? When Romans discovered they were able to make glass in the 1 st century BC, things changed for the better! He figured how to grind glass together and decided to experiment. Leeuwenhoek made his own 270 x magnification compound microscope! A set of principles developed over time via multiple investigations. Today, microscopes magnifications range from 200 x-10, 000 x magnification. The discovery of the cell was made through the invention of the microscope between 1665 -1838. © Copyright 2015 – All rights reserved. www. cpalms. org

DAY 1 CELL THEORY There are 3 major parts of the cell theory: 1.

DAY 1 CELL THEORY There are 3 major parts of the cell theory: 1. All organisms are made of cells. 2. All existing cells are produced by other living cells. 3. The cell is the most basic unit of life. © Copyright 2015 – All rights reserved. www. cpalms. org

CONTRIBUTORS 1. 2. 3. 4. 5. There are 5 contributors to the cell theory:

CONTRIBUTORS 1. 2. 3. 4. 5. There are 5 contributors to the cell theory: Robert Hooke Anton van Leeuwenhoek Matthias Schleiden Theodor Schwann Rudolf Virchow Each of the above contributors produced evidence through investigations and experiments that led to today’s cell theory! © Copyright 2015 – All rights reserved. www. cpalms. org

HOME LEARNING Review all notes taken in your interactive notebook in class today! ©

HOME LEARNING Review all notes taken in your interactive notebook in class today! © Copyright 2015 – All rights reserved. www. cpalms. org

DAY 2 BELL-RINGER ! 1. The cell theory is composed of how many parts?

DAY 2 BELL-RINGER ! 1. The cell theory is composed of how many parts? 2. How many contributors help compile today’s cell theory? © Copyright 2015 – All rights reserved. www. cpalms. org

ROBERT HOOKE https: //en. wikipedia. org/wiki/ Robert_Hooke English Scientist o Used the compound microscope

ROBERT HOOKE https: //en. wikipedia. org/wiki/ Robert_Hooke English Scientist o Used the compound microscope to observe cork. o Hooke observed that cork is composed of small, hollow compartments. o The parts prompted Hooke to think of small rooms (cells) in a monastery, so he gave them the same name: CELLS. o Investigated cork through experimenting with the compound microscope and came up with the name cells! Key Note: Hooke discovered the cell in 1665, which started formulating the cell theory! © Copyright 2015 – All rights reserved. www. cpalms. org

CORK https: //commons. wikimedia. org/wiki/File : Cork_oak_trunk_section. jpg © Copyright 2015 – All rights

CORK https: //commons. wikimedia. org/wiki/File : Cork_oak_trunk_section. jpg © Copyright 2015 – All rights reserved. www. cpalms. org

MONASTERY © Copyright 2015 – All rights reserved. www. cpalms. org

MONASTERY © Copyright 2015 – All rights reserved. www. cpalms. org

HOOKE’S INVESTIGATION/EXPERIMENT Hooke’s Observations https: //en. wikipedia. org/wiki/Robert_Hooke’s Microscope https: //en. wikipedia. org/wiki/Robert_Hooke ©

HOOKE’S INVESTIGATION/EXPERIMENT Hooke’s Observations https: //en. wikipedia. org/wiki/Robert_Hooke’s Microscope https: //en. wikipedia. org/wiki/Robert_Hooke © Copyright 2015 – All rights reserved. www. cpalms. org

ANTON VAN LEEUWENHOEK Dutch Tradesman o Study new approaches for creating lenses to observe

ANTON VAN LEEUWENHOEK Dutch Tradesman o Study new approaches for creating lenses to observe cloth. o Leeuwenhoek’s microscope was more powerful than Hooke’s compound microscope. o From investigating and experimenting with his microscope, Leeuwenhoek became one of the first scientists to refer to living cells when he observed an abundant number of single-celled organisms, which he called animalcules (plant & animal), swimming in a drop of pond water! © Copyright 2015 – All rights reserved. www. cpalms. org

LEEUWENHOEK’S INVESTIGATIONS/EXPERIMENT Leeuwenhoek’s Observations Leeuwenhoek’s Microscope © Copyright 2015 – All rights reserved. www.

LEEUWENHOEK’S INVESTIGATIONS/EXPERIMENT Leeuwenhoek’s Observations Leeuwenhoek’s Microscope © Copyright 2015 – All rights reserved. www. cpalms. org

MATTHIAS SCHLEIDEN German Scientist o Fascinated with plant cells, Schleiden used the compound microscope

MATTHIAS SCHLEIDEN German Scientist o Fascinated with plant cells, Schleiden used the compound microscope and studied plant cells. o From investigating and experimenting with plants, projected plant parts are made of cells! o Discussed what he observed with his dear friend, German scientist Theodor Schwann. © Copyright 2015 – All rights reserved. www. cpalms. org

THEODOR SCHWANN German Scientist o Studied plant & animal cells, and was intrigued by

THEODOR SCHWANN German Scientist o Studied plant & animal cells, and was intrigued by the similarities between the two. o From investigating and experimenting with plant & animal cells, Schwann was able to determine that all animals are made of cells! o Schwann published the 1 st statement of the cell theory: all living things are made of cells and cell products! © Copyright 2015 – All rights reserved. www. cpalms. org

RUDOLF VIRCHOW o. Based on his investigations and experiments, he stated that all cells

RUDOLF VIRCHOW o. Based on his investigations and experiments, he stated that all cells come from preexisting cells, which is the 2 nd part of the cell theory: all existing cells are produced by other living cells! Key Note: After Virchow’s completed his work, the cell theory was finally formulated in 1838! © Copyright 2015 – All rights reserved. www. cpalms. org

RECAP Cell Theory Contributors Eye-Catchers There are 3 major parts of the cell theory:

RECAP Cell Theory Contributors Eye-Catchers There are 3 major parts of the cell theory: 1. All organisms are made of cells. 2. All existing cells are produced by other living cells. 3. The cell is the most basic unit of life. These three parts were discovered between 16651838. There are 5 contributors to the cell theory: Robert Hooke 1. Robert Hooke 2. Anton van Leeuwenhoek o came up with the name cells Anton Van Leeuwenhoek o referred to living cells called animalcules (plant & animal) after observing a drop of pond water Matthias Schleiden projected plant cells are made of cells 3. Matthias Schleiden o 4. Theodor Schwann 5. Rudolf Virchow Key Note: It took over 173 years for the cell THEORY to be formulated, wow! o determined all animals are made of cells (1 st statement of the cell theory) Rudolf Virchow o stated all cells come from preexisting cells (2 nd statement of the cell theory) © Copyright 2015 – All rights reserved. www. cpalms. org

DAY 2 EXIT TICKET 1. Name the 3 major parts of the cell theory.

DAY 2 EXIT TICKET 1. Name the 3 major parts of the cell theory. 2. Name the 5 contributors of the cell theory. The wacky history of cell theory - Lauren Royal-Woods (TED-Ed) © Copyright 2015 – All rights reserved. www. cpalms. org