Do Now:

1. Do Now: • Draw a picture of a cell and label as many parts as you can.

2. The Cell • The parts of a cell are called? • Organelles. • Organelles means “little organs”

3. Types of Cells • Plant cell Animal cell

4. The Cell Membrane • Surrounds the cell • Allows materials to move in and out • The Cell Membrane (1min 1sec).asf

5. Chromosomes • Made of DNA • Instructions for building the body

6. Nucleus • Contains the Chromosomes • Found in the center of the cell • Organelles - The Nucleus (1min 6sec).asf

7. Nuclear Membrane • Separates Chromosomes from the rest of the cell.

8. Cytoplasm • Supports the Organelles. • Many chemical reactions happen here. • The Cytoplasm (21sec).asf

9. Just like complex organisms, cells are able to survive by coordinating various activities. Complex organisms have a variety of systems, and cells have a variety of organelles that work to help the cell survive. Describe the role of two organelles. In your answer be sure to include: • The names of two organelles and the function of each. • An explanation of how the organelle does it’s job. • The name of the organelle and the name of a part of the human body that has a similar function.

10. Mitochondria • Site of cellular respiration (production of ATP) • Powerhouse of the cell • Organelles - Mitochondria.asf

11. Ribosomes • Site of protein synthesis (use information from DNA to make proteins) • Very tiny

12. Endoplasmic Reticulum • Transports materials around the cell • Network of passageways • Organelles - The Endoplasmic Reticulum (33sec).asf

13. Golgi Body • Packages materials for export out of the cell

14. Lysosomes • Contains enzymes that digest foreign particles and old cell parts

15. Vacuole • Storage space for food, water or waste products. Vacuole

16. Write down a part of the cell we learned today that you think is most important and describe why you think it is most important. • Ask a neighbor what they thought was most important and why. • Pick ONE. • Why did you decide to pick that one?

17. Cell Parts (organelles) • There are two types of cells that we are going to be talking about. • Animals are made up of what type of cell? • Answer: Animal cells! (includes humans). • Plants are made up of what type of cell? • Answer: Plant cells!

18. Animal Cell

19. Centrioles • Cylindrical structures only found in animal cells that aid in replication (cell division).

20. Centrioles and Spindle Fibers • Centrioles are anchor point for spindle fibers • Spindle fibers appear during cell division

21. Parts of the Plant Cell • Plants have organelles in them that Animal cells don’t have.

22. Cell Wall • Rigid structure that encloses, supports and protects the cells of plants, algae, fungi and most bacteria. • Cell walls in plants are made of cellulose.

23. Cell Wall • Protective outer layer on plant cells • Adds support

24. Chloroplasts • Structures found only in the plant cell. • Site of photosynthesis. • Photo = Light, Synthesis = To make. • So Photosynthesis means to make something (glucose) using Light!

25. Chloroplast • Contain Chlorophyll • Site of Photosynthesis • Chloroplasts and Photosynthesis (50sec).asf