1. Unit 7

2. Discovery of a Cell  Robert Hooke used a microscope to look at a piece of cork.  He saw little squares that look like prison cells.  Named them cells

3. Organelle  Cells are made of smaller parts called organelles.  Each organelle has a specific function.  Plants and animal cells have some different organelles.

4. Cell Membrane  Covers the outside of the cell and controls what enters and exits  Only animals and plants

5. Cytoplasm  A jelly like liquid that fills the cell. Organelles can move around the cell  Plants and animals

6. Nucleus  Controls all activities in the cell and houses the DNA. (brain of cell)  Plants and animals

7. Mitochondrion  Changes food and oxygen into energy. (Power house of the cell)  Plants and animals

8. Vacuole  Storage area of the cell. Holds water, food, and minerals……BIGGER in plant cells  Plants and animals

9. Vacuoles in Plants  Vacuoles are much larger in plants.  Storing food.

10. Lysosome  Breakdown and recycle material in a cell (known as the “stomach of the cell”)  Animals

11. Nuclear Membrane  Controls what enters and exits the nucleus.

12. Cell Wall  Surrounds the cell. Gives the cell shape and structure. (bones of the cell)  Plants only

13. Chloroplast  Contains chlorophyll that traps sunlight. Photosynthesis occurs here.  Plants only

14. Plant cell What do you think the green dots are? Where on a plant would you find cells like this?

15. Animal Cells