the cell and it’s parts
DESCRIPTION
The Cell and it’s Parts. Boy! What a little cell can do!. The Cell Theory. All living things are composed of cells Cells are the basic units of structure and function in living things New cells are produced from existing cells. Prokaryotes Have cell membrane Have cytoplasm - PowerPoint PPT PresentationTRANSCRIPT
Functions of Cell Parts
The Cell and its PartsBoy! What a little cell can do!The Cell TheoryAll living things are composed of cellsCells are the basic units of structure and function in living thingsNew cells are produced from existing cells
Prokaryotes vs. EukaryotesProkaryotesHave cell membraneHave cytoplasmDNA is free floating in cytoplasmNO NUCLEUSBacteria!EukaryotesHave cell membraneHave cytoplasmDNA is containedIN NUCLEUSHave organellesSpecialized structures with specific functions
Cell Membrane: The Video Clip
Structural components of cellsCell WallFunction:Provides supportFound in:Plants and Fungi, ProkaryotesSurrounds cell membraneCell Membrane:Functions:Controls movement in and out of cellReceives signals from other cells (in multicellular orgs)Found in:All cellsCytoplasm:Function:Site of chemical reactionsContained by cell membraneFound in:All cells
Nucleus
Organelles found in EukaryotesNucleusFunction:Contains DNA (chromatin)Control center of cellSurrounded by Nuclear membraneNucleolus:Center of nucleusSite of ribosome synthesisFound in:All eukaryotic cells
Ribosomes: The Video Clip
Organelles found in EukaryotesRibosomesFunction:Site of protein synthesisLittle dotsFound in:All eukaryotic cellsEndoplasmic Reticulum (ER)Function:Assembly of cell parts and transportSmooth has no ribosomesRough has ribosomes on surfaceFound in:All eukaryotic cells
Organelles found in EukaryotesGolgi ApparatusFunction:Proteins are packaged and shipped hereFound in:All eukaryotic cells
Organelles found in EukaryotesMitochondriaFunction:Site of cellular respirationReleasing energy from foodPowerhouse of cellFound in:All eukaryotic cellsVacuoleFunction:Empty space used for storageMuch LARGER in plant cellsWHY?Need to store water and starchFound in:All eukaryotic cells
Ode to a Plant Cell: Cell Wall and Vacuole
Organelles specific to nutritionLysosomesFunction:Contain enzymes that break down thingsFound in:Heterotrophic cellsChloroplastFunction:Site of photosynthesisUses suns energy and water to make food!Found in:Plant cells, and some Protists
Chloroplast
Animal Cell
Plant Cell
Lets compare Animal and Plant cellsCell Membrane, Cytoplasm,Nucleus, Mitochondria, Ribosomes, ER, GolgiLysosomesSmall VacuolesCentriolesCell WallChloroplastsLarge VacuoleLets compare unicellular to multicellular organisms!UnicellularNucleusCell Membrane
Lysosome
MulticellularNervous systemSkin; Respiratory;ExcretoryDigestive system