Question

Which one of the following is micro nutrients?

• A. Phosphorous
• B. Potassium
• C. Nitrogen
• D. Boron

Answer 1

The correct option is D

Boron

The correct option is D

The explanation for the correct option:

1. Boron is an essential micronutrient for the growth and survival of all plants.
2. It's found in the cell walls and propagules of plants.
3. Boron can be present in soil solution, adsorbed to surface soil, and organic matter, as well as being a component of soil mineralogy.
4. It is primarily engaged in cell wall synthesis and structural integration in plants and performs a variety of vital activities.

The explanation for the incorrect options:

Option A:

1. A necessary macronutrient whose lack is a serious concern in cropping systems is phosphorus.
2. It has a role in cell membrane function and integrity, as well as being a component of DNA and RNA.
3. It's also a part of the ATP system, which is plants and animals' "energy currency."

Option B:

1. Potassium, like nitrogen (N) and phosphorus (P), is a macronutrient (P).
2. Plants absorb potassium in its ionic state (K+).
3. Potassium aids photosynthesis and food creation by enhancing various enzyme functions.
4. It aids in the translocation of sugars and carbohydrates by forming cellulose.
5. Potassium is involved in water control and the transport of reserve chemicals in plants.

Option C:

1. Because it is involved in energy metabolism and protein synthesis, nitrogen is an essential macronutrient that is clearly connected to plant growth and development.
2. The plant absorbs nitrogen in the form of nitrate.
3. It is required for photosynthesis and the creation of chlorophyll.
4. Nitrogen is a key component of fertilizers and is widely employed in modern agriculture as a limiting nutrient for plant development and crop productivity.

Final Answer: Among the following, boron is a micronutrient.