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23 Cards in this Set
- Front
- Back
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Passive Transport
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Type of transport that requires no energy
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Concentration Gradient
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The difference in concentration of high and low
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Equilibrium
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State where molecules are even at concentrations
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diffusion
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the movement of molecules from an area of high concentration to an area of low concentration
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osmosis
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Process by which water molecules move from high concentration to low concentration
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hypertonic
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Higher Concentration of solutes outside cell, lower concentration of solutes inside the cell therefore water moves out of the cell
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hyotonic
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Lower concentration of solutes outside Higher Concentration of solutes inside the cell; therefore water will travel into the cell
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isotonic
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state where the concentratioon levels of the solutes reach equilibrium and there is not more movemnet of water into or out of the cell.
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ion channel
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Passive transport involving the movement of ions into and out of the cell
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carrier protein
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Protein used to transport specific substances
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facilitated diffusion
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Type of passive transport that requires no energy
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active transport
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type of transport that requires energy
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sodium-potassium pump
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carrier potein used in active transport
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endocytosis
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taking solids or liquids into a cell
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exocytosis
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expelling of waste and other products
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receptor protein
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binds to a signal molecule, enabling the cell to respond to the signal molecule
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second messenger
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acts as a signal molecule in the cytoplasm
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turgor pressure
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pressure created by the central vacuole
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contractive vacuole
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organelle in paramecium that rids extra water
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pinocytosis
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taking in of fluids into a cell
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phagacytosis
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process of taking in solids into a cell
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Plasmolysis
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shrinking away of cell membrane from cell wall
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Vescile
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Small membrane bound pouch for transport
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