The protons that are produced by the splitting of water accumulates

Options

A. On the outer membrane of thylakoids
B. On the outer membrane of stroma lamella
C. Within the lumen of thylakoids
D. In the stroma

Answer

To solve the question regarding the accumulation of protons produced by the splitting of water, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Process**: The question refers to the splitting of water, also known as photolysis, which occurs during the light-dependent reactions of photosynthesis. This process is crucial for the generation of energy in plants.

2. **Location of Water Splitting**: Photolysis of water takes place on the inner side of the thylakoid membrane. It is important to note where this reaction occurs to understand where the protons will accumulate.

3. **Production of Protons**: During the splitting of water, hydrogen ions (protons) are released. These protons are a byproduct of the reaction where water molecules are split into oxygen, electrons, and protons.

4. **Accumulation of Protons**: The protons produced from the splitting of water do not just disperse; they accumulate in a specific location. In this case, they accumulate within the lumen of the thylakoids.

5. **Evaluating Options**: The question provides several options regarding where the protons accumulate:
- Outer membrane of thylakoids (incorrect)
- Outer membrane of stroma lamellae (incorrect)
- Within the lumen of thylakoids (correct)
- In the stroma (incorrect)

6. **Conclusion**: Based on the understanding of the process and the location of proton accumulation, the correct answer is that the protons produced by the splitting of water accumulate within the lumen of the thylakoids.

### Final Answer:
The protons that are produced by the splitting of water accumulate within the lumen of thylakoids.

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