Minerals which maintain cation-anion balance in cells are.
A
Cl and K
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B
K and Fe
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C
Cl and Mg
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D
Ca and Mg
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Solution
The correct option is D Cl and K
Minerals are macromolecules required for growth and development of living organisms.
A. Cl and K is an anion-cation combination. Cl helps in maintaining the cation-anion balance in cells along with Na and K. K also helps in maintaining the cation-anion balance.
B. K and Fe is a cation-cation combination. K helps in maintaining the cation-anion balance in cells. Fe is an important constituent of proteins involved in the transfer of electrons like ferredoxin and cytochromes.
C. Cl and Mg is an anion-cation combination. Cl helps in maintaining the cation-anion balance. Mg occurs in middle pectate as magnesium pectate.
D. Ca and Mg is a cation-cation combination. Ca helps synthesis of cell wall during cell division.