1. Chapter 7: Cell Structure and Function Honors Biology 2008-2009

2. 1665 Hooke publishes first drawings of cork Uses the word “cell” for the first time 1674 Leeuwenhoek observes tiny “living” things in pond water using microscope 1838-1839 Schleiden concludes that plants are made of cells Schwann concludes that animals are made of cells 1855 Virchow proposes Cell Theory Cells: A Brief History

3. Cell Theory All living things are made of cells. Cells are the basic unit of structure and function for all living things. New cells come from pre-existing cells.

4. Prokaryotic Cell Cell membrane Cytoplasm Nucleus Organelles Eukaryotic Cell Section 7-1 Prokaryotic and Eukaryotic Cells Go to Section: DNA & Ribosomes too!

5. ProkaryoticEukaryotic Prokaryotic vs. Eukaryotic Venn Diagram DNAcytoplasmnucleusribosomes cell membraneorganellesbacteriaplant/animal cells DNA cell membrane cytoplasm ribosomes bacterianucleus organelles plant/animal cells

6. Cell PartFunctionAnalogyProkaryoticEukaryotic AnimalPlant Cell MembraneControls flow of molecules in and out of the cell; protection Submarine; balloon Cell WallStructure and support bricks on a building RibosomesAssembles proteins factory; assembly line Endoplasmic ReticulumTransports proteins and other cell materials highway Golgi ApparatusPackages and labels proteins post office LysosomesBreaks down and recycles cell parts garbage disposal; recycling truck VacuolesStores materials; provides support for plants warehouse smalllarge MitochondriaConverts food energy (glucose) into chemical energy (ATP) battery; weight room ChloroplastConverts sun’s energy into food energy (glucose) kitchen CytoskeletonProvides shape and movement to cell bones

7. Animal Cell Plant Cell

8. AnimalPlant Plant vs. Animal Venn Diagram cell membraneendoplasmic reticulummitochondria cytoplasmGolgi apparatuschloroplast cell wallcytoskeletonlysosomes ribosomesvacuolesnucleus cell membrane cytoplasm ribosomes endoplasmic reticulum Golgi apparatus cytoskeleton vacuoles mitochondria nucleus lysosomes cell wall chloroplast