NEET BIOLOGY

Detailed explanation-1: -Plants use nitrates as a supply of nitrogen, which is needed to make proteins for healthy growth. Plants absorb nitrates in water through their roots. Nitrates are present in high levels in plant fertilisers. Without nitrates, the amount of chlorophyll in leaves reduces.

Detailed explanation-2: -Nitrates in the soil are a primary source of nitrogen which is essential for plant growth. Under normal conditions nitrates are converted to protein in the plant at about the same rates as they are absorbed into the root system.

Detailed explanation-3: -As nitrate is assimilated via conversion to nitrite, then ammonium into amino acids, it has been suggested that the internal pools of amino acids within plants may indicate nitrogen status by providing a signal that can regulate nitrate uptake by the plant.

Detailed explanation-4: -Plants use nitrates to make amino acids and proteins; these are then transferred to animals in the food chain .