| A | B |
|---|
| Why is it believed that cells were discovered by accident? | The first person to see cells wasn't looking for them. |
| What did Anton van Leeuwenhoek observe with his microscope? | bacteria, yeast (unicellular organisms), and small organisms in pond scum |
| What did Robert Hooke see when he looked at a thin slice of cork with his microscope? | hundreds of little boxes that looked like a honeycomb--and named them "cells" |
| What does "cell" mean in Latin? | "little room"--such as the tiny rooms monks lived in |
| Did Hooke think that cells were found in all organisms? | He thought that cells were only found in plant and fungi because the walls of those cells are easier to see. |
| What did Matthias Schleiden discover about cells? | He observed plants and concluded that all plants are made up of cells. |
| What did Theodor Schwann discover about cells? | He observed animals and concluded that all animals are made of cells. |
| What did Rudolf Virchow contribute to the cell theory? | His research led him to conclude that all cells come from other living things. |
| What are the three parts of the cell theory? | All organisms are made up of cells; Cells are the basic unit of structure and function of all living things; Cells come from other cells. |
| What are the four parts that all cells have in common? | cytoplasm, cell membrane, DNA, and organelles |
| What is cytoplasm? | the fluid in a cell and almost everything in the fluid |
| What is a cell membrane? | the barrier between the inside of a cell and its environment |
| What is DNA? | controls all activities of a cell and contains information needed for a cell to make new cells |
| What are organelles? | structures that a cell uses to live, grow, and reproduce |
