Quizlet
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| 1-1 of 1Facilitated diffusion flashcard sets | |||
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| # | Title | Terms | Date |
| 1 | Cell Transportby hollystevens | 18 terms | October 27, 2009 |
No groups found.
| facilitated diffusion definitions | |||
|---|---|---|---|
| # | Definition | Sets | |
| 1 | movement of specific molecules across cell membranes through protein channels | 117 sets | |
| 2 | many polar molecules and ions impeded by the lipid bilayer of a membrane diffuse passively with the help of transport proteins that span the membrane | 30 sets | |
| 3 | the transport of substances through a cell membrane along a concentration gradient with the aid of carrier proteins | 29 sets | |
| 4 | pathway provided by transport proteins that helps certain molecules pass through a membrane | 22 sets | |
| 5 | when substances transport across cell membranes using protein carrier molecules | 18 sets | |
| 6 | the spontaneous passage of molecules and ions, bound to specific carrier proteins, across a biological membrane down their concentration gradients. | 15 sets | |
| 7 | passive transport of materials across a plasma membrane by transport proteins embedded in the plasma membrane | 13 sets | |
| 8 | the spontaneous passage of molecules and ions, bound to specific carrier proteins, across a biological membrane down their concentration gradients | 10 sets | |
| 9 | movement of molecules through protein channels in the membrane from high to low concentration | 8 sets | |
| 10 | the transport of substances through a cell membrane along a concentration gradient with the aid of carrier proteins. | 8 sets | |
| 11 | a process in which substances move down their concentration gradient across the cell membrane with the assistance of carrier proteins | 8 sets | |
| 12 | the passage of a substance across a biological membrane down its concentration gradient, aided by specific transport proteins. | 7 sets | |
| 13 | transport proteins provide a pathway for certain molecules to pass | 7 sets | |
| 14 | polar substances that cannot pass through the nonpolar cell wall are moved across by protein pumps or proteins that pull through the membrane, no energy is required | 7 sets | |
| 15 | the movement of molecules across a membrane with the help of protein molecules | 7 sets | |
| 16 | the spontaneous passage of molecules or ions across a biological membrane with the assistance of specific transmembrane transport proteins. | 7 sets | |
| 17 | movement of specific molecules across cell membranes through protein channels. | 6 sets | |
| 18 | transport of substances through a cell membrane down a concentration gradient aided by carrier proteins | 6 sets | |
| 19 | the passage of a substance through a specific transport protein across a biological membrane down its concentration gradient. | 5 sets | |
| 20 | this process is used for molecules that cannot readily diffuse through the cell membrane | 5 sets | |
| 21 | movement of molecules across a cell membrane through protein channels | 5 sets | |
| 22 | a form of diffusion that requires the assistance of a transport protein | 5 sets | |
| 23 | 1. doesn't require energy 2. goes down the concentraion gradient | 4 sets | |
| 24 | what is the diffusion of solutes or water through channel proteins in the plasma membrane? | 4 sets | |
| 25 | diffusion through selective pores | 4 sets | |
| 26 | transport proteins speed the passive movement of molecules across the plasma membrane | 3 sets | |
| 27 | a type of diffusion where proteins assist the movement of molecules across the membrane. | 3 sets | |
| 28 | involves the use of a protein to facilitate the movement of molecules across the membrane. in some cases, molecules pass through channels within the protein. | 3 sets | |
| 29 | molecules move through protein channels instead of a membrane | 3 sets | |
| 30 | used for molecules that cannot readily diffuse through cell membranes | 3 sets | |
| 31 | the passage of a substance across a biological membrane down its concentration gradient, aided by specific transport proteins | 3 sets | |
| 32 | diffusion of molecules assisted by protein channels that pierce a cell membrane | 3 sets | |
| 33 | a process in which substances are transported across cell membranes by means of protein carrier molecules | 3 sets | |
| 34 | the passive movement of molecules down their concentration gradient via transport proteins | 3 sets | |
| 35 | diffusion through selected pores | 3 sets | |
| 36 | a process by which substances are moved across a cell membrane down their concentration gradient using a protein carrier. | 3 sets | |
| 37 | process that moves materials from high to low concentration with the help of protein channels; does not require energy | 3 sets | |
| 38 | movement of specific molecules across cell membranes though protein channels | 3 sets | |
| 39 | the spontaneous passage of molecules or ions across a biological membrane with the assistance of specific transmembrane transport proteins | 3 sets | |
| 40 | water diffuses by | 3 sets | |