Strauss: Cell Organelle & Movement Terms
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| Phospholipids | Molecules that ofrm the protective covering that surrounds cells
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| Cellulose | Carbohydrate that is one of the most abundant biological molecules on Earth
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| Amino Acids | Molecules that link together to form proteins
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| Lipids | Group of chemicals that contains fats, waxes, and steroids
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| Nucleic acids | Large, complex molecules that contain hereditary, or genetic information
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| Carbohydrates | Groups of chemicals, including sugars and starches, that provide energy to organisms
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| Enzymes | Group of proteins that help control chemical reactions
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| Nucleolus | Structure that makes ribosomes
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| Cytoplasm | Semifluid substance made primarily of water and organic compounds
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| Eukaryote | Cell containing a nucleus
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| Cell Membrane | Thin layer of lipid and protein that separates the cell's contents from the environment
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| Prokaryote | Cell containing no nucleus
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| Organelles | Structures that carry out the functions in a cell
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| Bilayer | Two phospholipid layers of the cell membrane
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| Nucleus | Control center of the cell
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| Chromosomes | Structures containing coded blueprints that control cell activity
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| Semipermeable | allowing only certain molecules to pass through membrane
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| Diffusion | The movement of molecules from an area of high concentration to an area of low concentration
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| Concentration Gradient | The difference between the concentration of a particular molecule in one area and its concentration in a neighboring area
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| Osmosis | The diffusion of water molecules across a semipermeable membrane
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| Hypertonic Solution | Solution having a higher concentration of solutes outside a cell than the concentration of solutes inside the cell
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| Hypotonic Solution | A solution having a lower concentration of solutes outside the cell than the concentration of solutes inside the cell
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| Isotonic Solution | A solution whose concentration is equal to the concentration of solutes inside the cell
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| Facilitated Diffusion | The process of transporting molecules by carrier proteins during diffusion
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| Active Transport | Transport of a substance across a cell membrane requring the use of energy; occurs against a concentration gradient
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| Bulk Transport | When large molecules, food, and other substances are packaged and moved across the membrane
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