Cell Structure & Function

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By: Alex Sipes. Cell Structure & Function. http://koning.ecsu.ctstateu.edu/cell/cell.html. Overview. A cell is a very important part of living beings...in fact, it is what makes them live. Cells are designed to do specific jobs in the body, and keep us living and breathing. - PowerPoint PPT Presentation

Transcript of Cell Structure & Function

  • Cell Structure & Functionhttp://koning.ecsu.ctstateu.edu/cell/cell.htmlBy: Alex Sipes

  • Overview

    A cell is a very important part of living beings...in fact, it is what makes them live. Cells are designed to do specific jobs in the body, and keep us living and breathing.

  • Examples of Cells

  • ProkaryoticDo not have structures surrounded by membranesFew internal structuresOne-celled organisms, Bacteria http://library.thinkquest.org/C004535/prokaryotic_cells.html

  • EukaryoticContain organelles surrounded by membranesMost living organismsPlantAnimalhttp://library.thinkquest.org/C004535/eukaryotic_cells.html

  • Typical Animal Cellhttp://web.jjay.cuny.edu/~acarpi/NSC/images/cell.gif

  • Typical Plant Cellhttp://waynesword.palomar.edu/images/plant3.gif

  • Cell PartsOrganelles

  • Cell MembraneOuter membrane of cell that controls movement in and out of the cellDouble layer http://library.thinkquest.org/12413/structures.html

  • Cell WallMost commonly found in plant cells & bacteriaSupports & protects cellshttp://library.thinkquest.org/12413/structures.html

  • Nucleus Directs cell activitiesSeparated from cytoplasm by nuclear membraneContains genetic material - DNA

  • Nuclear MembraneSurrounds nucleusMade of two layersOpenings allow material to enter and leave nucleus http://library.thinkquest.org/12413/structures.html

  • CytoplasmGel-like mixtureSurrounded by cell membraneContains hereditary material

  • Endoplasmic ReticulumMoves materials around in cellSmooth type: lacks ribosomesRough type (pictured): ribosomes embedded in surface http://library.thinkquest.org/12413/structures.html

  • RibosomesEach cell contains thousandsMake proteinsFound on ribosomes & floating throughout the cellhttp://library.thinkquest.org/12413/structures.html

  • MitochondriaProduces energy through chemical reactions breaking down fats & carbohydratesControls level of water and other materials in cellRecycles and decomposes proteins, fats, and carbohydrateshttp://library.thinkquest.org/12413/structures.html

  • Golgi BodiesProtein 'packaging plant'Move materials within the cellMove materials out of the cellhttp://library.thinkquest.org/12413/structures.html

  • LysosomeDigestive 'plant' for proteins, fats, and carbohydratesTransports undigested material to cell membrane for removalCell breaks down if lysosome explodes http://library.thinkquest.org/12413/structures.html

  • VacuolesMembrane-bound sacs for storage, digestion, and waste removalContains water solutionHelp plants maintain shapehttp://library.thinkquest.org/12413/structures.html

  • ChloroplastUsually found in plant cellsContains green chlorophyllWhere photosynthesis takes placehttp://library.thinkquest.org/12413/structures.html