Answer the following questions with reference to nitrogen:
i. The form in which it is absorbed from the soil.
ii. In which part of the plant is it required?
iii. Two organic compounds in which it is a component.
Answers
Answer:
Absorbtion
Nitrogen assimilation in plants. Plants absorb nitrogen from the soil in the form of nitrate (NO3−) and ammonium (NH4+). In aerobic soils where nitrification can occur, nitrate is usually the predominant form of available nitrogen that is absorbed
Requirment in plants
Nitrogen plays a critical role within the plant to ensure energy is available when and where the plant needs it to optimize yield. This crucial nutrient is even present in the roots as proteins and enzymes help regulate water and nutrient uptake.
Nitrogen in compounds or organic compound
Nitrogen forms many thousands of organic compounds. Most of the known varieties may be regarded as derived from ammonia, hydrogen cyanide, cyanogen, and nitrous or nitric acid. The amines, amino acids, and amides, for example, are derived from or closely related to ammonia.