The Cell and its Parts Boy! What a little cell can do!
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The Cell Theory 1.All living things are composed of cells
2.Cells are the basic units of structure and function in living
things 3.New cells are produced from existing cells
Slide 3
Prokaryotes vs. Eukaryotes Prokaryotes Have cell membraneHave
cell membrane Have cytoplasmHave cytoplasm DNA is free floating in
cytoplasmDNA is free floating in cytoplasm NO NUCLEUSNO NUCLEUS
Bacteria!Bacteria!Eukaryotes Have cell membraneHave cell membrane
Have cytoplasmHave cytoplasm DNA is containedDNA is contained IN
NUCLEUSIN NUCLEUS Have organellesHave organelles Specialized
structures with specific functionsSpecialized structures with
specific functions
Slide 4
Cell Membrane: The Video Clip
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Structural components of cells Cell Wall Cell Wall
Function:Function: Provides supportProvides support Found in:Found
in: Plants and Fungi, ProkaryotesPlants and Fungi, Prokaryotes
Surrounds cell membraneSurrounds cell membrane Cell Membrane: Cell
Membrane: Functions:Functions: Controls movement in and out of
cellControls movement in and out of cell Receives signals from
other cells (in multicellular orgs)Receives signals from other
cells (in multicellular orgs) Found in:Found in: All cellsAll cells
Cytoplasm: Cytoplasm: Function:Function: Site of chemical
reactionsSite of chemical reactions Contained by cell
membraneContained by cell membrane Found in:Found in: All cellsAll
cells
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Nucleus
Slide 7
Organelles found in Eukaryotes Nucleus Nucleus Function
:Function : Contains DNA (chromatin)Contains DNA (chromatin)
Control center of cellControl center of cell Surrounded by Nuclear
membraneSurrounded by Nuclear membrane Nucleolus: Nucleolus: Center
of nucleusCenter of nucleus Site of ribosome synthesisSite of
ribosome synthesis Found in:Found in: All eukaryotic cellsAll
eukaryotic cells
Slide 8
Ribosomes: The Video Clip
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Organelles found in Eukaryotes Ribosomes Ribosomes
Function:Function: Site of protein synthesisSite of protein
synthesis Little dotsLittle dots Found in:Found in: All eukaryotic
cellsAll eukaryotic cells Endoplasmic Reticulum (ER) Endoplasmic
Reticulum (ER) Function:Function: Assembly of cell parts and
transportAssembly of cell parts and transport Smooth has no
ribosomesSmooth has no ribosomes Rough has ribosomes on
surfaceRough has ribosomes on surface Found in:Found in: All
eukaryotic cellsAll eukaryotic cells
Slide 10
Organelles found in Eukaryotes Golgi Apparatus Golgi Apparatus
Function:Function: Proteins are packaged and shipped hereProteins
are packaged and shipped here Found in:Found in: All eukaryotic
cellsAll eukaryotic cells
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Organelles found in Eukaryotes Mitochondria Mitochondria
Function :Function : Site of cellular respirationSite of cellular
respiration Releasing energy from foodReleasing energy from food
Powerhouse of cellPowerhouse of cell Found in:Found in: All
eukaryotic cellsAll eukaryotic cells Vacuole Vacuole
Function:Function: Empty space used for storageEmpty space used for
storage Much LARGER in plant cellsWHY?Much LARGER in plant
cellsWHY? Need to store water and starchNeed to store water and
starch Found in:Found in: All eukaryotic cellsAll eukaryotic
cells
Slide 12
Ode to a Plant Cell: Cell Wall and Vacuole
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Organelles specific to nutrition Lysosomes Lysosomes
Function:Function: Contain enzymes that break down thingsContain
enzymes that break down things Found in:Found in: Heterotrophic
cellsHeterotrophic cells Chloroplast Chloroplast Function:Function:
Site of photosynthesisSite of photosynthesis Uses suns energy and
water to make food!Uses suns energy and water to make food! Found
in:Found in: Plant cells, and some ProtistsPlant cells, and some
Protists
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Chloroplast
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Animal Cell
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Plant Cell
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Lets compare Animal and Plant cells Animal Cell Plant Cell Cell
Membrane, Cytoplasm, Nucleus, Mitochondria, Ribosomes, ER, Golgi
Lysosomes Small Vacuoles Centrioles Cell Wall Chloroplasts Large
Vacuole
Slide 18
Lets compare unicellular to multicellular organisms!
Unicellular Nucleus Nucleus Cell Membrane Cell Membrane Lysosome
LysosomeMulticellular Nervous system Nervous system Skin;
Respiratory;Excretory Skin; Respiratory;Excretory Digestive system
Digestive system