Normal homeostatic conditions require potassium concentrations to be about 1000 times higher inside the cell than in the blood.

what mechanism does a cell use to move these small potassium molecules into the cell against the concentration gradient

Which statement correctly describes other ways in which nebulae and stars are different? a. a star always has a higher density than a nebula. b. stars can form inside a nebula but a nebula can never be produced by any star. c. stars can never form inside a nebula but a nebula can be produced by any star. d. a nebula always has a higher density than a star. reset submit