Achange in smooth muscle cell tension in the absence of a change in electrical potential of the cells is described as a a. pacemaker potential. b. slow wave potential. c. pharmacomechanical coupling. d. electromechanical coupling.

Cells a and b are the same size and shape, but cell a is metabolically quiet and cell b is actively consuming oxygen. oxygen will diffuse more quickly into cell because . b the oxygen molecules inside cell b have a higher kinetic energy b. a its membrane transport proteins will not be saturated c. a the diffusion gradient there is shallowerd. b the diffusion gradient there is steeper