Question

i. Which bacteria helpful in the nitrogen fixation in plant?
ii. In generally by which process nitrogen fixation possible on the earth ?
iii. What is the use of nitrogen in plants?(protein synthesis/carbohydrate synthesis)
iv. In which plants nitrogen fixing bacteria can live? v. how much % of nitrogen is present on earth?​

Answer 1

Answer:

Don't know so sorry dear :(

Answer 2

1. Answer:

The Rhizobium or Bradyrhizobium bacteria colonize the host plant's root system and cause the roots to form nodules to house the bacteria . The bacteria then begin to fix the nitrogen required by the plant.

2. Answer:

Nitrogen fixation is carried out naturally in soil by microorganisms termed diazotrophs that include bacteria such as Azotobacter and archaea. Some nitrogen-fixing bacteria have symbiotic relationships with plant groups, especially legumes.

3. Answer:

Nitrogen is an essential macronutrient for plant function and is a key component of amino acids, which form the building blocks of plant proteins and enzymes.

4. Answer:

There are two main types of nitrogen-fixing bacteria. Symbiotic, or mutualistic, species live in root nodules of certain plants.

5. Answer:

The air in Earth's atmosphere is made up of approximately 78 percent nitrogen and 21 percent oxygen.