Niels Bohr was born and educated in Copenhagen, Denmark. He lived, worked, and died there, too. But his mark on science and history was worldwide. His professional work and personal convictions were part of the larger stories of the century.
Salivary pH Test: While generally more acidic than blood, salivary pH mirrors the blood (if not around meals) and is also a fairly good indicator of health. It tells us what the body retains. Salivary pH is a fair indicator of the health of the extracellular fluids and their alkaline mineral reserves.
The minus sign indicates that the inside of the cell is negative with respect to the surrounding extracellular fluid. It is essential to realize that only a very small number of negative and positive ions need to be separated by the membrane to create the resting membrane potential.embrane Potentials. In cells of all types, there is an electrical potential difference between the inside of the cell and the surrounding extracellular fluid. This is termed the membrane potential of the cell.