NEET BIOLOGY

Detailed explanation-1: -Nitrogen is quantitatively the most important nutrient that plants acquire from the soil. It is well established that plant roots take up nitrogen compounds of low molecular mass, including ammonium, nitrate, and amino acids. However, in the soil of natural ecosystems, nitrogen occurs predominantly as proteins.

Detailed explanation-2: -The key ingredients plants need for protein production are glucose and nitrates, which are taken up from the soil by the roots. When glucose and nitrates are joined, they produce amino acids. During protein synthesis, multiple amino acids are bound together to make proteins.

Detailed explanation-3: -Three of the well-known macronutrients are nitrogen, phosphorus and potassium; these nutrients make up the primary ingredients of granular fertilizers. Nitrogen is needed for plant leaf and stem growth, using amino acids to build plant proteins.

Detailed explanation-4: -Plants take up nitrate from the soil via the transporter proteins present in the root cell membrane. There are other nitrate transporters that are involved in moving nitrate within plants to different tissues as needed.

Detailed explanation-5: -Ammonia is converted to nitrates by nitrifying bacteria in the soil. Plants absorb nitrates from the soil and use these to build up proteins.