Chapter 7: A View Of The cadrephone Ch. 7.1 The Discovery of cadreular phones The History of the Cell Theory- Before microscopes disease thought to get on from supernatural government agency Cells- the basic unit of living organisms Development of light microscopes- open microscopes vs. compound Compound light microscopes- a series of lenses to flip ones wig objects in steps, overdraw up to 1,500 times The Cell Theory- Anton caravan Leeuwenhoek- depression person to record looking at wet under a microscope. Robert Hooke- viewed cork, gave us the name cells Matthias Schleiden- concluded that exclusively plants ar represent of cells Theodore Schwann- concluded that all animals are composed of cells 1. either organisms are composed of one or more than cells 2. The cell is the basic unit of organization of organisms 3. All cells come from preexisting cells Development of electron microscopes negatron microscopes- uses a disperse of electrons instead of light to magn ify structures up to 500,000times 1. Scanning negatron Microscope (SEM)- scans the stand up to show 3D surface images 2. Transmission Electron Microscope (TEM)- allows us to see inner cells 3. Scanning Tunneling Microscope (STM)- investigates atoms on the surface of a molecule 4.
Staining, other techniques for contrast Two wakeless Cell Types- - Prokaryotes- organisms do of cells that lack membrane margin organelles - Eukaryotes- organisms do of cells with membrane echo organelles, multicellular plants & animals - Organelles- membrane bound structures with in a eukaryotic cell * Membrane separates chemi cal reactions * Robert Brown- spy nucleus *! Rudolf Virchow- determined nucleus is structure obligated for cell division * Nucleus- key membrane-bound organelle that manages cellular functions Ch. 7.2 The blood plasma Membrane Provides a barrier amongst the internal components of a cell and its external environment. Maintaining a Balance- Survival depends on the cells ability to concord the proper conditions within itself. If you want to grab a respectable essay, order it on our website: BestEssayCheap.com
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