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20 Cards in this Set
- Front
- Back
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Cytology
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The study of cells
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Reproduction
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Producing more cells
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Respiration
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The breakdown of food molecules with a release of energy
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Secretion
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The release of biosynthesized substances for use by other cells
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Phagocytosis
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The process by which a cell engulfs foreign substances or other cells
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Homeostasis
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Maintaining the status quo in a cell
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Excretion
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The removal of soluble waste materials
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Absorption
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The transport of dissolved substances into cells
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Digestion
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The breakdown of absorbed substances
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Egestion
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The removal of non-soluble waste materials
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Cytoplasmic streaming
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The motion of the cytoplasm which results in a coordinated movement of the cell's organelles
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Hypertonic solution
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A solution in which the concentration of solutes is greater than that of the cell which resides in the solution
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Activation energy
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Energy necessary to get a chemical reaction going
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Active transport
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Movement of molecules through the plasma membrane (typically opposite the dictates of osmosis or diffusion) aided by a chemical process
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Passive transport
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Movement of molecules through the plasma membrane according to the dictates of osmosis or diffusion
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Cytolysis
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The rupturing of a cell due to excess internal pressure
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Hypotonic Solution
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A solution in which the concentration of solutes is less than that of the cell which resides in the solution
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Isotonic solution
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A solution in which the concentration of solutes is essentially equal to that of the cell which resides in the solution
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Phospholipid
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A lipid in which one of the fatty acid molecules has been replaced by a molecule which contains a phosphate group
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Plasmolysis
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A collapse of the cell's cytoplasm due to lack of water
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