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Grade: 12

                        

The most abundant intracellular cation is A C a + + B H + C K + D N a +

27 days ago

Answers : (1)

Ankit Singh
27 Points
							

Potassium ions, K+, are the main cations in intracellular fluids. They contribute to the transmission of nerve impulses and muscle contraction. Plants also need K+ for stomatal opening and closing activities in which they absorb energy from sunlight through the process of photosynthesis and transports from epidermal cell to guard cell fro opening. Plants also need nutrients for healthy growth. Carbon dioxide is obtained from air. Inorganic ions are obtained from the soil where they are dissolved in water. The three ions required in the greatest amounts are nitrate, phosphate and potassium - sources of nitrogen (N), phosphorus (P) and potassium (K) respectively. Smaller amounts of magnesium (Mg2+), calcium (Ca2+) and some other ions are also required.

 
27 days ago
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