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Related Flashcards
Cards In This Set
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Uses a series of lenses to magnify objects in steps
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Compound light microscope
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1. All organisms are composed of one or more cells2.The cell is the basic unit of structure and organization of organisms3. All cells come from preexisting cells
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Cell theory
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Uses a beam of electorons instead of light to magnify structures up to 500 000 times their actual size
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Electron microscope
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Membrane-bound structures with particular functions within eukaryotic cells
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Organelles
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Basic units of living things
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Cell
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Unicellular organisms that do not have a nucleus or membrane bound organelles
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Prokaryotes
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Multi cellular or unicellular organisms with membrane-bound organelles and a nucleus
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Eukaryotes
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Central membrane-bound organelle that manages or controls cellular functions
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Nucleus
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Flexible boundary betweeen the cell and its environment; allows materials such as water and nutrients to enter and waste products to leave
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Plasma membrane
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Process in which a membrane allows some molecules to pass through while keeping others out
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Selective permeablity
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Lipids with a phosphate group attached
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Phospholipid
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Structural model of the pm where molecules are free to move sideways within a lipid bilayer
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Fluid mosaic model
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Move needed substances or waste material through the pm
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Transport protiens
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Fairly rigid structure located outside the pm that provides additional support and protection
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Cell wall
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Strands of the genetic material, DNA
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Chromatin
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