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What is a cell?

What is a cell?. Cell. Take Notes. The smallest unit able to perform life functions. Cell Parts. Organelles and their functions. Surrounding the Cell. Cell Membrane. Take Notes. Take Notes. Outer membrane of cell that controls movement in and out of the cell Double layer .

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What is a cell?

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  1. What is a cell?

  2. Cell Take Notes • The smallest unit able to perform life functions

  3. Cell Parts Organelles and their functions

  4. Surrounding the Cell

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

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

  7. Inside the Cell

  8. Cytoplasm Take Notes • Gel-like mixture • Surrounded by cell membrane • Contains hereditary material

  9. Nucleus Take Notes • Directs cell activities • Separated from cytoplasm by nuclear membrane • Contains genetic material - DNA

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

  11. Nuclear Membrane Take Notes • Surrounds nucleus • Made of two layers • Openings allow material to enter and leave nucleus http://library.thinkquest.org/12413/structures.html

  12. Endoplasmic Reticulum Take Notes • Moves materials around in cell • Smooth type: lacks ribosomes • Rough type (pictured): ribosomes embedded in surface http://library.thinkquest.org/12413/structures.html

  13. Ribosomes Take Notes • Each cell contains thousands • Make proteins • Found on ribosomes & floating throughout the cell http://library.thinkquest.org/12413/structures.html

  14. Mitochondria Take Notes • Produces energy through chemical reactions – breaking down fats & carbohydrates • Controls level of water and other materials in cell • Recycles and decomposes proteins, fats, and carbohydrates http://library.thinkquest.org/12413/structures.html

  15. Golgi Bodies Take Notes • Protein 'packaging plant' • Move materials within the cell • Move materials out of the cell http://library.thinkquest.org/12413/structures.html

  16. Lysosome Take Notes • Digestive 'plant' for proteins, fats, and carbohydrates • Transports undigested material to cell membrane for removal • Cell breaks down if lysosome explodes http://library.thinkquest.org/12413/structures.html

  17. Vacuoles Take Notes • Membrane-bound sacs for storage, digestion, and waste removal • Contains water solution • Help plants maintain shape http://library.thinkquest.org/12413/structures.html

  18. Chloroplast Take Notes • Usually found in plant cells • Contains green chlorophyll • Where photosynthesis takes place http://library.thinkquest.org/12413/structures.html

  19. Tissue Take Notes A group of cells that work together to do a job.

  20. Organs Take Notes A group of tissues that work together to do a job.

  21. Organ Systems Take Notes A group of organs that work together to do a job.

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