| A | B |
|---|
| Light Microscope | passes visible light through specimen, can use live specimens |
| Magnification | increases size of an object |
| Resolving Power | the mease of clarity of an image |
| Electron Microscope | passes beams of electrons instead of light. specimens non-living |
| TEM | studies internal details |
| SEM | studies cell surfaces |
| Cells | smallest unit of matter |
| Rober Hooke | observed cork cells |
| Anton Van Leeuwenhoek | first observed living cells |
| Cell Theory | all living things are composed of one or more cells * cells basic unit of structure * come from reproduction of exsisting cells |
| Mathias Schleiden | plants are composed of cells |
| Theodore Scgwann | animsld sre composed of cells |
| Rudolf Virchow | studied how diseases effect living things, cells only come from other cells |
| organelle | performs specific functions for the cell |
| Eukaryotic | membrane bound nucleus contain many organelles have a distinct nucleus |
| Prokaryotic | unicellular organisms, lack membrane bound nucleus and organelles, DNA located within cytoplasm, few organelles |
| Cell Membrane | phospholipid (hydrophillic head on outside, hydrophobic tail on inside) seperates internal from external, controlles movement, selectively permeable, allows interaction, phospho lipid bilayer |
| Mosiac | embedded within phospholipid bilayer |
| integral | embedded within membrane |
| peripheral | attatched to both surfaces |
| Cytoplasm | semi-fluid material, fills region in cell membrane |
| cytosol | semi-fluid portion in cytoplasm, gelitin like |
| Mitochondrian | tranfers energy to ATP, contains DNA |
| Leucoplasts | white plastids found in tubers and roots |
| chromoplasts | green plastids contains pigments |
| chloroplasts | green plastids found in leaves and stems |
| Nucleus | Brain of cell, contains chromosomes composed of DNA, RNA too |
| Ribosome | proteins are made here, 3 types 70s, 70s(o), and 80s |
| Endoplasmic Reticulum | membranous tubules and sacs, intercellular highway, |
| Rough ER | maked large proteins, ribosomes attatched to this, |
| Smooth ER | breaks down toxic substances, |
| Golgi Apparatus | delivery system of eukaryotic cells, produces lysosomes |
