1. Cells

2. Have a membrane (covering) Have all materials needed for life ALL LIVING THINGS ARE MADE OF CELLS

3. Who discovered cells? Hint: His first name was Robert Hint 2:

4. ROBERT HOOKE!!

5. Who discovered single celled organisms? Hint: He called them “animalcules” Hint 2: He saw was the first person to see bacteria Hint 3: His first name is Anton

6. Leeuwenhoek!! (LAY vuhn HOOK)

7. Cell Theory 1.All organisms are made of one or more cells. 2.The cell is the basic unit of all living things.

8. Cell Theory continued… 3.All cells come from other cells.

9. Cell Membrane Surrounds the cell Acts as a barrier Controls what comes in and what goes out of the cell

10. Cytoplasm Fluid inside the cell Kind of like a jelly

11. What are some organs in your body? Heart, lungs, stomach, intestines, brain They each have a special job to do. Cells have something similar inside them

12. Organelles Structures that make sure the cells live Each organelle has a special job

13. Some get rid of waste, some store material, etc.

14. Nucleus Some cells have DNA inside the nucleus. Bacteria do not have a nucleus. The nucleus acts as the “brain” of the cell.

15. DNA DNA is the genetic material Deoxyribonucleic acid

16. DNA continued…. It has info to make new cells and new organisms. In some cells the DNA is inside the nucleus.

17. Types of Cells Eukaryotes Organisms whose cells have a nucleus. People, dogs, cats, plants Prokaryotes Do not have a nucleus; single celled Also called bacteria

18. Archaebacteria Not as common as bacteria; single celled Live in places where other bacteria can’t survive such as hot springs, swamps, deep ocean vents.

19. What are the differences between a plant and animal cell?

20. Plant Cells

21. Chloroplast Green, oval shaped Contains chlorophyll, which takes energy from the sun and makes food.

22. Cell wall Outer layer of plant cell Strong and sturdy Supports and protects the plant cell