CH 4---Cells - Cells Cell Theory All organisms made of one...

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Unformatted text preview: Cells Cell Theory All organisms made of one or more cells Basic living unit of organization All cells come from pre­existing cells Compound Light Microscope Uses light to view Uses glass lens to magnify Plus: live specimens Minus: not very small Electron Microscope Beams of electrons Electromagnets to magnify Plus: very small Minus: can’t use live specimens So why are cells so small? Limits to Cell Size 1) Surface area:Volume Limits to Cell Size Limits to Cell Size 1) Volume:Surface area 2) Distance from outside cell to center Prokaryote Smaller No true nucleus (nucleoid) No membranous organelles Bacteria, Archea Eukaryote Larger Has a nucleus Has membranous organelles Other 4 kingdoms ANIMAL CELL Nucleus Ribosomes Rough ER Smooth ER Golgi body Vesicles Mitochondria Lysosomes Cytoskeleton Plasma Membrane Nucleus ANIMAL CELL Nucleus Ribosomes Rough ER Smooth ER Golgi apparatus Vesicles Mitochondria Lysosomes Cytoskeleton Plasma Membrane ANIMAL CELL Nucleus Ribosomes Rough ER Smooth ER Golgi apparatus Vesicles Mitochondria Lysosomes Cytoskeleton Plasma Membrane Rough ER ANIMAL CELL Nucleus Ribosomes Rough ER Smooth ER Golgi apparatus Vesicles Mitochondria Lysosomes Cytoskeleton Plasma Membrane ANIMAL CELL Nucleus Ribosomes Rough ER Smooth ER Golgi apparatus Vesicles Mitochondria Lysosomes Cytoskeleton Plasma Membrane ANIMAL CELL Nucleus Ribosomes Rough ER Smooth ER Golgi apparatus Vesicles Mitochondria Lysosomes Cytoskeleton Plasma Membrane ER & Golgi 04­16­EndomembraneSysAnim.mov ER & Golgi ANIMAL CELL Nucleus Ribosomes Rough ER Smooth ER Golgi apparatus Vesicles Mitochondria Lysosomes Cytoskeleton Plasma Membrane Mitochondrion ANIMAL CELL Nucleus Ribosomes Rough ER Smooth ER Golgi apparatus Vesicles Mitochondria Lysosomes Cytoskeleton Plasma Membrane Lysosome ANIMAL CELL Nucleus Ribosomes Rough ER Smooth ER Golgi apparatus Vesicles Mitochondria Lysosomes Cytoskeleton Plasma Membrane Flagella and Cilia ANIMAL CELL Nucleus Ribosomes Rough ER Smooth ER Golgi apparatus Vesicles Mitochondria Lysosomes Cytoskeleton Plasma Membrane Plasma Membrane Phospholipid bilayer Selectively permeable Plasma Membrane Membrane Proteins Cellular Junctions PLANT CELL Also has: Cell wall Chloroplasts Central vacuole PLANT CELL Also has: Cell wall Chloroplasts Central vacuole Chloroplasts PLANT CELL Also has: Cell wall Chloroplasts Central vacuole Vacuoles ...
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