Question
What is the role of nitrogen fixing bacteria?
✓
Answer
Nitrogen-fixing bacteria are microorganisms present in the soil or in plant roots that change nitrogen gases from the atmosphere into solid nitrogen compounds that plants can use in the soil. That's a mouthful! Let's break this concept down.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
The speed-time graph of a car is given. The car weighs 1000 kg .
i. What is the distance travelled by car in the first 2 s ?
ii. What is the braking force applied at the end of 5 s to bring the car to stop within one second?
i. What is the distance travelled by car in the first 2 s ?
ii. What is the braking force applied at the end of 5 s to bring the car to stop within one second?
What is the difference between plasma membrane and cell wall? Give the functions of each one.
Look at the figure below and answer the following questions:
- Name the kind of motion of the stone.
- It this an example of accelerated motion? Why?
- Name the force that keeps the stone in its path.
- What is the direction of this force? Draw it in your answer sheet.
Explain why particles of a colloidal solution do not settle down when left undisturbed, while in the case of a suspension they do.
Name in which: Virus, bacterium and protozoa can be causal agent.
List any two differences between infectious and noninfectious diseases. Write any one example of each disease.
A $10\ g$ bullet travelling at $200\ m/s$ strikes and remains embedded in a $2\ kg$ target which is originally at rest but free to move. At what speed does the target move off$?$
→Write down names of different types of plant tissues.
- Name the phenomenon which helps fresh water unicellular organisms (e.g. Amoeba) continuously gain water in their bodies. Also, name the mechanisms by which these organisms throw out excess of water from their bodies.
- Give at least two examples in plants where similar phenomenon in used to gain water.
The number of neutrons and protons present in the nuclei of two atomic species $A$ and $B$ are given below.
→| Atomic Species | A | B |
| Protons | $8$ | $8$ |
| Neutrons | $8$ | $10$ |
- Write the mass numbers of $A$ and $B.$
- What is the relation between two species?
- Write the electronic configuration of atoms $A$ and $B.$