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Basic Cell Types


The cell is the basic structural and functional unit of all known living organisms. It is the smallest unit of life that is classified as a living thing, and is often called the building block of life. Organisms can be classified as unicellular (consisting of a single cell; including most bacteria) or multicellular (including plants and animals). Humans contain about 10 trillion (1013) cells. Most plant and animal cells are between 1 and 100 µm and therefore are visible only under the microscope.

The cell was discovered in 1665 by Robert Hooke. While he was observing cork bark under the microscope he observed that the cork was organized into little compartments. They reminded him of the small rooms monks lived in. He decided to call these structures cells which in Latin means “small room” as a result of his observations.


The three slide shows below showing examples of prokaryote, plant and animal cells. View these slide shows, as well as your class made images Record your observations and descriptions of each cell type on the Google form, submit when completed. When the class has completed their observations, we will create a word cloud from the results (click here to view results). This will constitute our conclusion. Please copy on your sheet the most important words in the word cloud. Take a screen shot of your word cloud using "command, shift, 4" and selecting the area you want to take a picture of. Then upload your images to my dropbox here see Mr. Fazio for the password.

Bacteria ‎‎‎(prokaryotes)‎‎‎

Plant cells ‎‎‎(eukaryote)‎‎‎

Animal Cells ‎‎‎(eukaryote)‎‎‎

Distinguishing Prokaryote and Eukaryote Cells