....this is the building block you're made of. Light Microscope uses light to see an image. -------------- Electron Microscope uses electrons to see an image. ----------------- Magnification of 300 means the image appears 300 times bigger. ------------ Resolution is the clarity(how clear the image is) of an image. --------- Kilo ( km ) = 1,000 meters about 2/3 mile Meter ( m ) = 1 meter about 39 inches longer than one yard Centimeter ( cm ) = 0.01m 1/2 diameter of a penny Millimeter ( mm ) milli = 0.001m pencil tip Micrometer ( um ) micro = 0.000001 bacterial cell Nanometer nano = 0.000000001 m water molecule Cell Theory -------------- 1: All living things are made from one or more cells 2: Cells are the basic units of structure and function in organisms. 3: All cells arise from existing cells. Life begets life. Cell Membrane -------------- 1: Closes a cell's interior( cytoplasm ) from its surrounding. It protects the inside of a cell from the outside world. --------- Cytoskeletion are microscopic fibers the structures inside a cell are built on. ------------ Ribosomes are cellular structures on which proteins are made. --------- Prokaryote are single cell organisms without a nucleus. They have a Cell Wall, not a Cell membrane. --------- ----------------- Eukaryotic are organisms with a nucleus. They have a cell membrane, not a Cell Wall. -------- -------- Flagella ( cilia ) are little hair like structures which enable movement for cells. ------- Nucleus contains the cell DNA. ------ Organelle carry out different functions inside a cell. -------- Cytoskeleton is the framework for a cell. Much like every house has a frame or your body has a skeleton. ----------- a: Actin Fibers expand and contract providing a cell with its shape. ---------- b: Microtubules act like a highway for information in a cell. ----------- c: Intermediate Fibers provide a frame which ribosomes and enzymes stay in one place in a cell. ---------------- ------------------------------------------------------------------------------ Eukaryotic Cells --------------------- a: Animal Cells b: Plant Cells Cell Membrane Mitochondria Chloroplasts Cell Wall ATD 3 sugars turns into ATP 2 sugars