Question

Which of the following statements correctly describe nitrogen and its role as a plant nutrient?

-Nitrogen is a macronutrient in plants.
-Nitrogen-fixing bacteria in the soil convert N2 to NH3.
-Nitrogen is a component of nucleic acids, proteins, hormones, and coenzymes.
-Plant roots can only absorb nitrogen in the form of ammonium ions (NH4+) or nitrate ions (NO3−).
-Nitrogen deficiency usually causes plant leaves to turn yellow.

Answer 1

Nitrogen is a macronutrient in plants and is involved in various essential processes. Nitrogen-fixing bacteria convert atmospheric nitrogen into a usable form for plants. Plant roots can absorb nitrogen as ammonium or nitrate ions, and a deficiency can lead to yellowing of leaves.

Step-by-step explanation:

In plants, nitrogen is a macronutrient and plays several crucial roles. Firstly, nitrogen is a component of nucleic acids, proteins, hormones, and coenzymes. Secondly, nitrogen-fixing bacteria in the soil convert atmospheric nitrogen (N2) into ammonia (NH3), which can be absorbed by plants. Thirdly, plant roots can absorb nitrogen in the form of ammonium ions (NH4+) or nitrate ions (NO3-). Finally, nitrogen deficiency in plants can cause their leaves to turn yellow.

Answer 2

Answer;

• Nitrogen is a macronutrient in plants.
• Nitrogen-fixing bacteria in the soil convert N2 to NH3.
• Nitrogen is a component of nucleic acids, proteins, hormones, and coenzymes.
• Plant roots can only absorb nitrogen in the form of ammonium ions (NH4+) or nitrate ions (NO3-)

Explanation;

• Macronutrients are elements that are taken in large amounts by the plants, they include; nitrogen, phosphorus, potassium, calcium, magnesium, and sulfur.
• Nitrogen-fixing bacteria in the soil and within the root nodules of some plants convert nitrogen gas in the atmosphere to ammonia.
• Plants absorb nitrogen from the soil both in the form of nitrate (NO3−) and ammonium (NH4+).
• Nitrogen is an essential element to form amino acids, proteins, nucleic acids, coenzymes and chlorophyll.