Minerals and Nutrients

Boron plays a crucial role in seed germination, particularly in pollen tube growth and cell elongation during early germination stages. While Iron is important for chlorophyll and Magnesium is the central atom in chlorophyll, and Zinc is involved in enzyme function, Boron specifically supports germination processes.

Active transport of minerals against their concentration gradient requires energy expenditure (ATP). While respiration produces the ATP and root metabolism is involved, the direct requirement for active uptake is the expenditure of energy. Photophosphorylation occurs in chloroplasts during photosynthesis, not directly in mineral uptake.

Microelements (micronutrients like Fe, Mn, Zn, Cu, Mo, B, Cl) primarily function as cofactors for various enzymes in plant metabolism. They are not building blocks of amino acids (that's N, S), not constituents of hormones (though some like B may influence hormone activity), and not binders of cell structure (that's Ca). Their main role is enzyme activation/cofactors.

When phosphorus is deficient, growth is reduced and leaves fall off prematurely. Plants lacking phosphorus produce dull, bluish-green leaves that turn a purplish or bronze colour with brown edges.

Calcium, a vital component in cell walls of plants, is essential for root growth.

Manganese is a naturally occurring element and an essential nutrient. ECF contains large amounts of sodium, chloride ions and moderate amounts of bicarbonate ions. Potassium, calcium, magnesium and phosphate ions are present in very minute quantities. But manganese is not present in ECF.

Manganese is a naturally occurring element and an essential nutrient. ECF contains large amounts of sodium, chloride ions and moderate amounts of bicarbonate ions. Potassium, calcium, magnesium and phosphate ions are present in very minute quantities. But, manganese is not present in ECF.

Hemocyanins are respiratory proteins in the form of metalloproteins containing two copper atoms that reversibly bind a single oxygen molecule (O2). Oxygenation causes a colour change between the colourless Cu(I) deoxygenated form and the blue Cu(II) oxygenated form. Unlike the hemoglobin in red blood cells found in vertebrates, hemocyanins are not bound to blood cells but are instead suspended directly in the haemolymph.

Sodium is obtained from table salt.

This is the correct answer because azurite is the mineral of copper.

Manganese complex is required for the evolution of oxygen during non-photophosphorylation part of the light reaction.

Calcium ions are required in blood coagulation for the conversion of prothrombin into active thrombin.

Manganese is a naturally occurring element and an essential nutrient. ECF contains large amounts of sodium, chloride ions and moderate amounts of bicarbonate ions. Potassium, calcium, magnesium and phosphate ions are present in very minute quantities. But manganese is not present in ECF.

Hemocyanins are respiratory proteins in the form of metalloproteins containing two copper atoms that reversibly bind a single oxygen molecule (O₂). Oxygenation causes a colour change between the colourless Cu(I) deoxygenated form and the blue Cu(II) oxygenated form. Unlike the hemoglobin in red blood cells found in vertebrates, hemocyanins are not bound to blood cells but are instead suspended directly in the haemolymph.

Brown algae called Kelp are the nautical multicellular algae rich in Iodine and  Potash. It plays major role in aquatic ecosystem both as food  and  the habitat they create.