Plant gets nitrogen from soil. Certain types of bacteria called rhizobium, are present in soil. They convert gaseous nitrogen into usable form and release it into the soil. ... Answer: Proteins and fats are the nutrients; other than carbohydrates; which are required by plants.

Nutrients Required by Plants

Plants require a variety of nutrients to grow and thrive. While carbohydrates are an essential source of energy for plants, there are several other nutrients that are equally important for their overall development. These nutrients can be broadly categorized into two groups: macronutrients and micronutrients.

Macronutrients:
Macronutrients are required by plants in large quantities and play a crucial role in their growth and development. The three primary macronutrients include:

1. Nitrogen (N): Nitrogen is a key component of amino acids, proteins, enzymes, and chlorophyll. It is responsible for the green color of plants and is essential for their overall growth. Nitrogen deficiency can result in stunted growth, yellowing of leaves, and reduced productivity.

2. Phosphorus (P): Phosphorus is involved in various processes such as energy transfer, photosynthesis, and cell division. It is a vital component of DNA, RNA, and ATP (adenosine triphosphate). Phosphorus deficiency can lead to poor root development, delayed maturity, and reduced flower and fruit production.

3. Potassium (K): Potassium helps in regulating water uptake and retention, enzyme activation, and overall plant metabolism. It is essential for the synthesis of carbohydrates and proteins. Potassium deficiency can cause weak stems, yellowing of leaves, and reduced disease resistance.

Micronutrients:
Micronutrients are required in smaller quantities but are equally important for plant growth. The essential micronutrients include:

1. Iron (Fe): Iron is necessary for the synthesis of chlorophyll and plays a vital role in photosynthesis. Iron deficiency can lead to chlorosis, where leaves turn yellow due to a lack of chlorophyll.

2. Zinc (Zn): Zinc is involved in enzyme activation and plays a crucial role in plant growth and development. Zinc deficiency can result in stunted growth, delayed flowering, and reduced fruit set.

3. Manganese (Mn): Manganese is essential for photosynthesis, enzyme activation, and nitrogen metabolism. Manganese deficiency can cause chlorosis, necrosis, and reduced growth.

4. Copper (Cu): Copper is involved in various enzymatic reactions and plays a role in cell wall synthesis. Copper deficiency can lead to wilting, reduced growth, and browning of leaves.

5. Boron (B): Boron is essential for cell division, carbohydrate metabolism, and calcium uptake. Boron deficiency can result in distorted growth, poor flower and fruit development, and reduced root growth.

6. Molybdenum (Mo): Molybdenum is required for nitrogen metabolism and the conversion of nitrate to ammonia. Molybdenum deficiency can cause yellowing of older leaves and reduced growth.

In addition to these macronutrients and micronutrients, plants also require water and sunlight for photosynthesis, as well as carbon dioxide for the synthesis of carbohydrates. Adequate nutrient availability is crucial for plant health, and deficiencies can negatively impact their growth, yield, and overall productivity. Therefore, maintaining a balanced nutrient supply is essential for optimal plant growth.

Protein