Robert Hooke
Hooke was the scientist who is credited for coining the term "cell" to describe a cell. He chose this word because when he looked at a thin sample of cork under a microscope, it looked like it was made up of small rooms (or cells).
Anton van LeeuwenhoekBuilt simple microscopes in the late 1600's and looked at different things under a microscope (e.g. lake water, scrapings from teeth, rain water in gutters). He noticed little single-celled organisms and called them "animalcules" (meaning "little animals"). Today, we call these things unicellular organisms, which is a complete, fully functioning organism that is made of only one cell. We will study these more in depth in a month.
Here is a video of pond water. This is probably similar to the unicellular organisms that Leeuwenhoek saw with his microscope. |
Cell Theory
A song about cell theory
Just how big are cells?Click this link to see! http://www.cellsalive.com/howbig.htm
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What do plant and animal cells look like?Click this link to see! http://www.cellsalive.com/cells/cell_model.htm
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7M and 7N - Use these diagrams of a plant and animal cell:
Animal cell
Plant cell
7S and 7R - Use these diagrams of a plant and animal cell:
Animal cell:
Plant cell:
Cells, Cells, They're Made of Organelles
This song will get stuck in your head for the rest of the day.
You're welcome!
You're welcome!
Another cell song
This song does a great job of explaining the parts of both an animal and plant cell.
*Keep in mind, for some of my classes (7M, 7Y and 7E) we may not talk about all of the organelles that he mentions.
*Keep in mind, for some of my classes (7M, 7Y and 7E) we may not talk about all of the organelles that he mentions.
Ideas for your cell project:
Above is a 3D model of an animal cell. To the right is a 3D model of a plant cell. Use these (as well as the link above) to help you get ideas for how to make your cell model.
You can use any materials you would like to create your model, so be creative! Remember, you also need to label each part and have a key/legend which explains what each organelle does. |
More ideas for your cell project...
Elements of a short story (for 7R and 7U) - http://www.youtube.com/watch?v=c6I24S72Jps
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Cell song/rap - Here is a song about the cell parts in the tune of "Ice Ice Baby" by Vanilla Ice:
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Cell song/rap - Here is a song about the cell parts in the tune of "Ice Ice Baby" by Vanilla Ice:
Here's a cell song set to the tune of a Ke$ha song
Use these sheets to help you write your cell song or rap
Tips for writing a cell rap - sheet 1 | |
File Size: | 50 kb |
File Type: |
Tips for writing a cell rap - sheet 2 | |
File Size: | 50 kb |
File Type: |
Graphic organizer for writing a song | |
File Size: | 54 kb |
File Type: |
Specialized Cells
Read about some of the different types of cells that we have in our body here:
Virtual Microscope
Check out this link to use a virtual microscope! A virtual microscope is a simulation of a microscope on the computer.
The microscope is slightly different than the ones that we use in class, but play around with it a bit to see how it works. Then put different slides under the microscope to see what they look like under different magnifications! Very cool!
http://www.udel.edu/biology/ketcham/microscope/ (click on the link that says "The virtual scope")
*Make the window full sized to see the microscope and slides in detail
The microscope is slightly different than the ones that we use in class, but play around with it a bit to see how it works. Then put different slides under the microscope to see what they look like under different magnifications! Very cool!
http://www.udel.edu/biology/ketcham/microscope/ (click on the link that says "The virtual scope")
*Make the window full sized to see the microscope and slides in detail
Onion root cells
Below is what you should have seen when we looked at onion root cells stained with iodine.
Human skin cells
Below is an image of human cells. This should look similar to what you saw under the microscope when we looked at our skin cells.
Plant cells under a microscope
Below is a picture of a cross section of a plant leaf. Note that every organelle is not visible in every single cell, which is due to the way that the leaf was sliced. When it was cut, some organelles may have be cut out.
Rabbit Tongue Cells
Below is a picture of rabbit tongue cells. Notice that not all cells look the same. Why do you think this is?