`N_(2)+8e^(-)+8H^(+)+16ATP to 2NH_(3)+H_(2)+16ADP+16"Pi" `
The above equation refers to

Options

A. ammonification
B. nitrificaion
C. nitrogen fixation
D. denitrification

Answer

To solve the question regarding the equation provided, we need to analyze the components and the process it represents. Here is a step-by-step breakdown:

### Step 1: Identify the Reactants and Products
The equation is:
\[ N_2 + 8e^- + 8H^+ + 16ATP \rightarrow 2NH_3 + H_2 + 16ADP + 16Pi \]

- **Reactants**: Nitrogen gas (N₂), electrons (e⁻), protons (H⁺), and ATP (adenosine triphosphate).
- **Products**: Ammonia (NH₃), hydrogen gas (H₂), ADP (adenosine diphosphate), and inorganic phosphate (Pi).

### Step 2: Analyze the Process
The equation describes a process where atmospheric nitrogen (N₂) is being converted into ammonia (NH₃). This conversion involves the reduction of nitrogen gas, which requires electrons and protons, and is coupled with the hydrolysis of ATP to provide the necessary energy.

### Step 3: Identify the Biological Process
The conversion of atmospheric nitrogen (N₂) into ammonia (NH₃) is known as **nitrogen fixation**. This process is crucial for making nitrogen available to plants in a form they can utilize.

### Step 4: Mention the Role of Nitrogen-Fixing Bacteria
Nitrogen fixation is primarily carried out by certain bacteria, such as:
- **Rhizobium**: Associated with leguminous plants.
- **Anabaena**: A cyanobacterium that can fix nitrogen, often found in symbiosis with aquatic plants like Azolla.

### Conclusion
The equation represents the process of **nitrogen fixation**.

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