1. The Basic Structure and Function of Cells
By Ita P. Rodríguez
3rd Grade
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2. Definition of Cells
Cells are the basic building blocks of living organisms
Just like brick can be a building block of a house
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3. Definition of Cells
Cells are so small you cannot see them with your naked eye
you need a microscope
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4. Purpose of Cells The main purpose of a cell is to organize
Cells hold different pieces and each cell has a different set of jobs
Cells are small compartments that hold all of the biological equipment necessary to keep an organism alive and successful on Earth
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5. Purpose of Cells
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6. Types of Cells There are many types of cells
They can have different shapes and sizes
Smallest Cells:
Longest Cells:
Biggest Cells:
6 inches long, 5 inches wide, 3 pounds
Ostrich Egg
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7. Types of Cells There are many types of cells
We will discuss animal cells and plants cells
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8. Animal Cells
Animal cells are eukaryotic (it means they have a nucleus)
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9. Vacuole
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10. Cell Parts Nucleus: controls the cell
It helps control eating, movement, and reproduction just like a brain in animals
The nucleus is not always in the center of the cell, but you won't find it near the edge of a cell because it's dangerous
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11. Cell Parts Mitochondrion: gives the cell energy
converts energy stored in food into usable energy for work
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12. Cell Parts
Vacuole: contains the waste or trash
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13. Cell Parts
Ribosomes: makes the proteins for the cell
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14. Cell Parts Golgi Apparatus: packs protein
it receives, processes, packages, and ships protein
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15. Cell Parts Cytoplasm: jelly-like fluid that holds the cell in place
contains salts, minerals and organic molecules
surrounds the other parts
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16. Cell Parts
Cell Membrane: the structure that separates the inside of the cell from the outside of the cell
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17. Cell Parts Lysosome: purpose is to digest things
breaks down food particles, invading objects, or worn out cell parts
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18. Plant Cells Plant cells are eukaryotic (it means they have a nucleus)
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19. Plant Cells
Ribosomes
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20. Cell Parts Cell Wall: purpose is to help the plant keep its shape
It's like taking a water balloon and putting it in a cardboard box. The balloon is protected from the outside world.
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21. Cell Parts Chloroplast: are the food producers of the cell
they create sugars that the plant uses
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22. Comparing Animal and Plant Cells
Look closely at the similarities and differences between an animal cell and a plant cell
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23. THE END
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