Describe about the biological important of sodium and potassium.

Explanation

(i) Monovalent sodium and potassium ions are found in large proportions in biological fluids.
(ii) Sodium-Postassium play an important role in transmitting nerve signals.
(iii) Sodium ions found on the outside of cells, being located in blood plasma and in the industrial fluid which surrounds the cells.
(iv) A typical 70 Kg man has 90g of Na and 170g K.
(v) These ions perform important biological functions such as maintenance of ion balance and nerve impulse conduction.