Question:
Which of the following is a free living nitrogen fixing bacteria present in the soil?
Which of the following is a free living nitrogen fixing bacteria present in the soil?
Updated On: Jul 28, 2023
- Pseudomonas
- Rhizobium
- Azotobacter
- Nitrosomonas
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The Correct Option is C
Solution and Explanation
The genus Azotobacter comprises large, free living, Gram negative, obiigately aerobic, rod shaped bacteria which are capable for fixation of nitrogen non-symbiotically. Rhizobium is a symbiotic nitrogen fixing bacteria, Nitrosomonas is a nitrifying bacteria, while Pseudomonas sp. is denitrifying bacteria.
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Concepts Used:
Mineral Nutrition
The naturally occurring inorganic nutrient found in the soil and food that is necessary for the proper functioning of animal and plant bodies is defined as nutrition. Minerals are vital elements essential for the body.
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Role of Nutrients:
- Balancing function
- Maintenance of osmotic pressure
- Influencing the pH of the cell sap
- Construction of the plant body
- Catalysis of the biochemical reaction
- Effects of Toxicity