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Cell transport

QuestionAnswer
Active transport Requires the input of energy to move molecules from a low concentration to a high concentration
Endocytosis The movement of relatively large quantities of material into a cell at one time.
Exocytosis The movement of relatively large quantities of material out of a cell at one time.
Diffusion The movement of molecules from a high concentration to a low concentration, without the input of energy
Osmosis The movement of water from a high concentration to a low concentration, across a semi-permeable membrane without the input of energy.
Hypotonic The concentration of solutes in the solution is lower than inside the cell.
Hypertonic The concentration of solutes in the solution is higher than inside the cell.
Isotonic The concentration of solutes inside the cell is the same as outside the cell.
passive transport the movement of substances across a cell membrane without the use of energy by the cell
Concentration Gradient the difference in the concentration of molecules across a distance.
facilitated Duffusion the transport of substances through a cell membrane along a concentration gradient with the aid of carrier proteins.
Equilibrium A balance between the concentration of molecules on each side of the cell membrane.
Semi- Permeable Allows some things to pass through while others do not pass through.
Transport Protein A large protein "stuck" in the cell membrane. It allows large molecules and particles to move into the cell. (and also out of the cell)
Cell membrane controls what goes in and out of the cell.
Created by: Jack Cusick
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