Others hypothesize that the overall ratio of calcium to phosphorous intake has a bigger impact on bone health than phosphorous intake on its own. Another plausible explanation for the link between high soda intake and low bone mass is that soft drinks often elbow out calcium-rich milk as individualsâ drink of choice.
To clarify, all cells have a plasma membrane. The function of the cell membrane is to protect the cell and control the transport from the inside to the outside of the cell. It contains transport signaling systems such as protein channels through which substances such as salts pass.
The cell membrane (also known as the plasma membrane or cytoplasmic membrane) is a biological membrane that separates the interior of all cells from the outside environment. The cell membrane is selectively permeable to ions and organic molecules and controls the movement of substances in and out of cells.The basic function of the cell membrane is to protect the cell from its surroundings. It consists of the phospholipid bilayer with embedded proteins.he movement of substances across the membrane can be either  passive , occurring without the input of cellular energy, or  active , requiring the cell to expend energy in transporting it. The membrane also maintains the cell potential.