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Cell Transport
Question | Answer |
---|---|
Particles in a solution tend to move from an area of HIGH concentration to an area of LOW concentration. | Diffusion |
The diffusion of water. | Osmosis |
When the concentration of solutes is the same on each side of the cell, the cell has reached a state of ____________________. | Equilibrium |
Barriers that allow some things to pass through, but not all things. | Semi-permeable OR selectively permeable membranes |
A type of diffusion that uses transport 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. | Endocytosis |
The process of releasing molecules OUT of the cell. | 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 solute 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 solutes outside of the cell is greater than it is inside of the cell. | Hypertonic |
Solution in which water enters the cell because the concentration of solutes outside of the cell is less than it is inside of the cell. | Hypotonic |
A type of cell transport that requires energy to move molecules against the concentration gradient (from low to high concentration). | Active Transport |