1 / 27

Cell Structure & Function

Cell Structure & Function. http://koning.ecsu.ctstateu.edu/cell/cell.html. Definition of Cell. A cell is the smallest unit of structure in all living things. Cell Theory. All living things are made of cells . All cells come from preexisting cells through cell division.

tadeo
Télécharger la présentation

Cell Structure & Function

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Cell Structure & Function http://koning.ecsu.ctstateu.edu/cell/cell.html

  2. Definition of Cell A cell is the smallest unit of structure in all living things.

  3. Cell Theory • All living things are made of cells. • All cells come from preexisting cells through cell division.

  4. Examples of Cells Amoeba Proteus Plant Stem Bacteria Red Blood Cell Nerve Cell

  5. Cell Organization CellTissue Organ (heart)

  6. Cell Organization (continued) • Organ system  Organism (circulatory system) (Human)

  7. Two Types of Cells Prokaryotic Eukaryotic

  8. Prokaryotic Cells • No membrane-bound organelles/structures • Do not have a true nucleus • One-celled organisms, Bacteria http://library.thinkquest.org/C004535/prokaryotic_cells.html

  9. Eukaryotic Cells • Contain organelles surrounded by membranes • Has a nucleus • Most living organisms Plant Animal http://library.thinkquest.org/C004535/eukaryotic_cells.html

  10. Cell Parts AKA Organelles

  11. Inside the Cell

  12. Nucleus • Directs cell activities • Contains genetic material – Chromosomes/DNA

  13. Nucleolus • Inside nucleus • Contains RNA to build proteins http://library.thinkquest.org/12413/structures.html

  14. Cytoplasm • Gel-like mixture in the cell

  15. Mitochondria • Produces energy through chemical reactions – breaking down fats & carbs • “Powerhouse” of the cell http://library.thinkquest.org/12413/structures.html

  16. Surrounding the Cell:Cell Membrane • Allows movement in and out of the cell http://library.thinkquest.org/12413/structures.html

  17. Cell Membrane Cont. • Passive Transport: • Requires NO energy • Diffusion: substance move through the membrane • Osmosis: movement of water from HIGH LOW concentration • Active Transport: • Requires energy • Moves from LOW HIGH concentration (that’s why it takes energy!)

  18. Endoplasmic Reticulum • Moves materials around in cell http://library.thinkquest.org/12413/structures.html

  19. Ribosomes • Make proteins http://library.thinkquest.org/12413/structures.html

  20. Vacuoles • Membrane-bound sacs for storage, digestion, and waste removal http://library.thinkquest.org/12413/structures.html

  21. Surrounding the Cell:Cell WallFound in plant cells/bacteria • Shapes, supports & protects cells http://library.thinkquest.org/12413/structures.html

  22. ChloroplastFound only in plant cells *Green Chlorophyll= Makes plant food/ photosynthesis http://library.thinkquest.org/12413/structures.html

  23. Golgi Bodies • Moves Protein within/out of the cell http://library.thinkquest.org/12413/structures.html

  24. LysosomeFound mainly in animal cells • Digestive functions for proteins, fats, and carbohydrates http://library.thinkquest.org/12413/structures.html

  25. “Typical” Animal Cell http://web.jjay.cuny.edu/~acarpi/NSC/images/cell.gif

  26. “Typical” Plant Cell http://waynesword.palomar.edu/images/plant3.gif

  27. Cellular Rap • http://www.youtube.com/watch?v=-zafJKbMPA8

More Related