Is Calcium Concentration Higher Inside The Cell?

Is Calcium Concentration Higher Inside The Cell? Calcium exists as a gradient across the plasma membrane, with extracellular concentrations being about 10,000 times higher than intracellular ones. … In order for a cell to use calcium as a signalling molecule, the cell must create calcium gradients across membranes. Is calcium higher intracellular or extracellular? Ninety-eight