give the biological importance of na+
plans and K + ions
Answers
Na* ions are found mainly in
extracellular region (outside the cel) and
play an important role in transmission of nerve signals.
They also regulate the flow of water across cell membranes and in transport of sugars and amino acid into the cells.
. Prolonged sweating results in sodium
ion loss in sweat, thus, it is important
that Na* ions are replaced through
proper diet.
Potassium ions are the most abundant
cations within cell fluids where they
activate many enzymes, participate in
oxidation of glucose to produce ATP
(adenosine triphosphate).
Potassium ions along with sodium ions
are responsible for transmission of
nerve signals. The functional features of
nerve cells depend upon the sodium
potassium ion gradient that is
established in the cell. Their ionic
gradients are maintained by sodium-
potassium pumps that operate across
the cell membranes.