When bound to GTP, the alpha subunit dissociates from the beta and gamma subunits, and the alpha subunit links up with another plasma membrane protein, either an or an enzyme, which are known as .

4. if a cell is placed inside a solution that has a higher concentration of solute than on the inside of the cell, what can be said about the movement of water? a. water will move out of the cell, causing it to shrivel. b. water will move in and out of the cell at the same rate. c. water will move out of the cell, causing it to swell. d. water will move into the cell, causing it to swell.