Cell TheoryObjective:

You will be able to describe what each person did for the cell theory.

You will be able to list the parts of the cell theory.

Itinerary:

1. Powerpoint and chart

2. Pictures to remember!

3. Smartboard activity

Warm ups

1. How can we see things that are really tiny?

2. How can we see things that are really far away?

The invention of microscopes made the discovery of cells possible.

1. Microscopes – used to see tiny objects2. Electron microscopes

are the most powerful microscopes today.

Person What did he do?

1. In 1590, two Dutch spectacle makers, Zaccharias Janssen and his son Hans, while experimenting with several lenses in a tube, discovered that nearby objects appeared greatly enlarged.

That was the forerunner of the compound microscope and of the telescope.

Person What did he do?

2. Robert Hooke In 1665, Hooke, an English scientist, used a microscope he had built to study a thin slice of corkHe saw the outer layers of the piece of cork’s cell wallsHe called the structures he saw “CELLS,” which means little rooms in Latin

Person What did he do?

3. Anton van Leeuwenhoek

In 1674, Van Leeuwenhoek, a Dutch lens maker, used a homemade microscope (1st compound light microscope)to look at some pond scumHe was the first person to see single celled organisms. He called them “animalcules”

Person What did he do?

4. Matthias Schleiden

German botanistLooked at MANY slides of plant tissuesIn 1838, concluded that all plants are made of cells

Person What did he do?

5. Theodor Schwann

German scientistStudied animalsObserved many different kinds of animal cells.In 1839, stated that all animal tissues are made of cells

Person What did he do?

6. Rudolf Virchow

German doctorIn 1858, concluded that all cells developed from other cells

The Cell Theory1. All living things are made of one or

more cells.

2. The cell is the basic unit of structure and of function in all living things.

3. All cells come from other living cells.

Write all of this!!

5 finger summary – just write the answers

1. What technology helped to discover cell?

2. Who looked at cork and came up with the name “cells”?

3. Used a microscope to observe “animalcules”

4. Said all plants are made up of cells

5. What is the theory that summarizes the importance of cells.