Question

Explain the role of Na and k in biological system ​

Answer 1

Potassium ions are found inside cells. K is pumped into cells in and energy-requiring process. The sodium-potassium balance across cell membranes creates an electric potential across the membranes - between inside and outside the cell in other words.

Answer 2

Potassium ions are primarily found inside the cell.

Potassium ions maintain the osmolarity (the concentration of a solution expressed as the total number of solute particles per litre) of the cell. They also regulate the opening and the closing of the stomata.

Potassium ions acts as cofactor for certain enzymes such as pyruvate kinase.

Potassium is important in heart function and in skeleton and muscle contraction.

Diets with low potassium leads to hypertension.

It maintains the electrolyte balance in the body.