1) Ion channel opening following acetylcholine binding to the postsynaptic side of a neuromuscular junction is an example of a ___channel a) voltage-gated b) leakage c) stress- activated d) ligand-gated 2) Na+/K+ ATPase is an example of a ____while the Na+/glucose cotransport system represents a _____. 3) HIV is viral disease where the virus enters cells upon activating a cell surface protein. The manner in which the virus enters the cell may be described as___. a) exocytosis b) pinocytosis c) phagocytosis d) receptor-mediated endocytosis e) facilitated diffusion 4) If a blood cell is placed in a 4% glucose solution water will move___(into/out of) the cell resulting in ___(crenation/lysis/maintenance of cell shape).