Which one of the following represents photohosphorylation ?

Options

A. ` ADP + AMP overset(" Light energy")to ATP`
B. ADP + Inorganic ` PO_(4) overset("Light energy") to ATP`
C. ADP + Inorganic ` PO_(4) to ` ATP
D. AMP + inorganic ` PO_(4) overset("Light energy") to ` ATP

Answer

To solve the question "Which one of the following represents photophosphorylation?", we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Term**:
- Photophosphorylation can be broken down into two parts: "photo" which refers to light, and "phosphorylation" which refers to the addition of a phosphate group to a molecule.

2. **Define Photophosphorylation**:
- Photophosphorylation is the process of adding an inorganic phosphate (Pi) to an organic molecule (like ADP) in the presence of light energy.

3. **Identify the Reaction**:
- The key reaction in photophosphorylation involves the conversion of ADP (adenosine diphosphate) and inorganic phosphate into ATP (adenosine triphosphate) using light energy.

4. **Write the Equation**:
- The general equation for photophosphorylation can be represented as:
\[ \text{ADP} + \text{Pi} + \text{light energy} \rightarrow \text{ATP} \]

5. **Select the Correct Option**:
- From the provided options, identify the one that matches the equation above, which indicates that ADP and inorganic phosphate in the presence of light produce ATP.

### Conclusion:
- The correct representation of photophosphorylation is the option that states: "ADP + inorganic phosphate in the presence of light energy gives ATP".