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Cell Structure & Function

Cell Structure & Function. http://koning.ecsu.ctstateu.edu/cell/cell.html. Cell Theory. All living things are made up of cells. Cells are the smallest working units of all living things. All cells come from preexisting cells through cell division. Definition of Cell.

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Cell Structure & Function

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

  2. Cell Theory • All living things are made up of cells. • Cells are the smallest working units of all living things. • All cells come from preexisting cells through cell division.

  3. Definition of Cell A cell is the smallest unit that is capable of performing life functions.

  4. The Cell structures and functions

  5. Cell Membrane • Outer membrane of cell that controls movement in and out of the cell http://library.thinkquest.org/12413/structures.html

  6. Endoplasmic Reticulum • Moves materials around in the cell • transports of cellular materials • “packaging system” http://library.thinkquest.org/12413/structures.html

  7. Cell Wall • Most commonly found in plant cells & bacteria • Supports & protects cells http://library.thinkquest.org/12413/structures.html

  8. Nucleus • Directs cell activities • Contains genetic material - DNA

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

  10. Chromosomes • In nucleus • Made of DNA • Contain instructions for traits & characteristics http://library.thinkquest.org/12413/structures.html

  11. Cytoplasm • Thick Gel-like mixture that protects the internal parts of the cell

  12. Ribosome • Each cell contains thousands of ribosome • Make proteins and build structures http://library.thinkquest.org/12413/structures.html

  13. Mitochondria • Produces energy (ATP) through chemical reactions – breaking down fats & carbohydrates http://library.thinkquest.org/12413/structures.html

  14. Lysosomes • Digestive 'plant' for proteins, fats, and carbohydrates • Transports undigested material to cell membrane for removal http://library.thinkquest.org/12413/structures.html

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

  16. Chloroplast • Usually found in plant cells • Where photosynthesis takes place http://library.thinkquest.org/12413/structures.html

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