10.24. Explain the significance of sodium, potassium, magnesium and calcium in biological fluids.
10.24. Explain the significance of sodium, potassium, magnesium and calcium in biological fluids.
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1 Answer
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Sodium:
- Na+ions participate in the transmission of nerve signals, in regulating the flow of water across cell membranes.
- In the transport of sugars and amino acids into cell.
Potassium:
- K+ions activate many enzymes.
- Participate in the oxidation of glucose to produce ATP.
Magnesium:
- All enzymes that utilise ATP in phosphate transfer require magnesium as a cofactor.
- Mg is the central metal ion present in chlorophyll pigment in plants.
Calcium:
- Ca2+ ions are present in bones.
- plays important roles in neuromuscular function.
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A
alok kumar singh
Li+ has the highest hydration enthalpy.
Hence it is most hydrated
Therefore, Correct order of hydrated radii is Cs+ < Rb+ < K+ < Na+ < Li+
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