Chapter 7 EC #1

3. limp,lacking turgor
5. A property of biological membranes that allows them to regulate the passage of substances across them.
7. transmembrane protein with hydrophobic regions that extend into and often completely span the hydrophobic interior of the membrane
10. active transport protein in a cell membrane that uses ATP to transport hydrogen ions out of a cell against their concentration gradient
11. Referring to a solution that, when surrounding a cell, causes no net movement of water into or out of the cell.
12. A channel protein in a cellular membrane that specifically facilitates osmosis, the diffusion of free water across the membrane.
13. transmembrane protein channel that opens or closes in response to a particular stimulus.
14. random thermal motion of particles of liquids, gases, or solids

1. A transmembrane protein channel that allows a specific ion to diffuse across the membrane down its concentration or electrochemical gradient.
2. model of cell membrane structure,
4. Referring to a solution that, when surrounding a cell, will cause the cell to lose water.
6. Swollen or distended, as in plant cells
8. Regulation of solute concentrations and water balance by a cell or organism.
9. The ability of a solution surrounding a cell to cause that cell to gain or lose water.