Plant and Animal Cells Virginia Science SOL 5.5

1. Plant and Animal Cells Virginia Science SOL 5.5 Kim Benzie Cave Spring Elementary Roanoke, VA

2. Standard - Virginia Science SOL 5.5 Living Systems The student will investigate and understand that organisms are made of cells and have distinguishing characteristics. Key concepts include: a. basic cell structures and functions; b. kingdoms of living things c. vascular and nonvascular plants; and d. vertebrates and invertebrates.

3. Plant and Animal Cells You have already learned that atoms and molecules are the building blocks of matter. Cells are the building blocks of all living things. Even though a flower, a cat, and a grasshopper are very different, they are all made of cells.

4. Plant and Animal Cells Cells in living things work together to carry out all the processes that allow an organism to stay alive. A group of cells in your body work together to form your circulatory system. Another group of cells work together to form your respiratory system. Without cells, you wouldn't be alive!

5. Plant and Animal Cells Cells are microscopic. They cannot be seen without a microscope. When viewed through a microscope, it is possible to see that while they are similar in many ways, there are some key differences between plant and animal cells. They have different shapes and some different parts.

6. Plant Cells Plant cells are usually rectangular in shape. They are made up of many parts (organelles) including the cell wall, cell membrane, cytoplasm, nucleus, chloroplasts, vacuoles, and mitochondria. Let's learn more about plant cells!

7. Plant Cells Cell Wall The cell wall gives shape and support to the plant cell. It surrounds the cell and protects the other parts of the cell. Return to cell page

8. Plant Cells Cell Membrane The cell membrane is a thin lining just inside the cell wall. The cell membrane controls what flows in and out of the cell (food, waste, water, oxygen). Return to cell page

9. Plant Cells Cytoplasm The cytoplasm is a jelly-like substance that fills the cell. All of the cell's organelles are located in the cytoplasm. Return to cell page

10. Plant Cells Nucleus The nucleus is a round structure inside the cell. It controls all of the cell's activities. The nucleus is the command center of the cell. Return to cell page

11. Plant Cells Vacuole Vacuoles are storage facilities for the cell. The vacuoles store food or waste that will be used (food) or gotten rid of (waste) later. Return to cell page

12. Plant Cells Chloroplasts are where the plant cell's chlorophyll is stored. This is what the plant uses to make its own food. Chloroplasts Return to cell page

13. Plant Cells The mitochondria are located in the cytoplasm. The mitochondria are the powerhouses of the cell. They release stored energy. Mitochondria Return to cell page

14. PLANT CELLS Elodia plant Elodia plant magnified 100X Onion Skin

15. AnimalCells Animal cells are circular in shape. They have many of the came cell parts that plant cells do, but not all of them. The parts of the cell perform the same functions as in a plant cell. Mitochondria Vacuole Cytoplasm Cell Membrane Nucleus

16. AnimalCells Frog blood Cheek cells magnified 100X

17. AnimalCells Canyouguesswhyanimalcellsdon't contain chloroplasts? Animals don't make their own food, so they don't need the chloroplasts. That's also why you are not green!

18. Animal Cells Can you guess why your cells don't have cell walls? You have a skeleton to give you shape and support! You don't need cell walls!

19. Images from: http://iws.ccccd.edu/jbeck/Cellsweb/Page.html http://homepage.mac.com/aireck/miXscope/200701/frog.jpg http://www.teachnet.ie/tburke/cell/cellhp.jpg http://faculty.kutztown.edu/friehauf/science_outreach/cells.html