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Biology - Unit 3

Cell Transport

QuestionAnswer
A substance that is dissolved in another substance. Solute
A liquid in which something is dissolved Solvent
Movement of ions or molecules across the cell membrane into a region of higher concentration (requires energy) Active transport
Barriers that allow some things to pass through, but not all things. Semi-permeable OR selectively permeable membranes
A type of diffusion that uses carrier proteins in the cell membrane to help move large molecules into/out of cells. Facilitated diffusion
TRUE or FALSE: Passive transport (diffusion, osmosis, facilitated diffusion), requires energy in order to occur. FALSE
TRUE or FALSE: Active transport (endocytosis, exocytosis), requires energy in order to occur. TRUE
The process of moving molecules INTO the cell by engulfing them (requires energy). Endocytosis
The process of releasing molecules OUT of the cell through the fusion of a cell vacuole with the cell membrane (requires energy). Exocytosis
A type of endocytosis that involves extensions of the cytoplasm reaching out to surround a molecule and bring it into the cell. Phagocytosis
A type of endocytosis that involves forming pockets in the cell membrane to suck liquids and other particles into the cell. Pinocytosis
Solution in which the concentrations are the same inside the cell as they are outside of the cell. Isotonic
Solution in which water leaves the cell because the concentration of water inside the cell is greater than it is outside of the cell. Hypertonic
Solution in which water enters the cell because the concentration of water outside the cell is greater than it is inside of the cell. Hypotonic
Created by: Ms_Tacy
 

 



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