Which of the following is not related to the non-cyclic process of light reaction ?

Options

A. The process involves both the photosystems which are interconnected by the ETS.
B. It results only in the synthesis of ATP, but not of `NADPH + H^+`.
C. The membranes of the stroma lamellae lacked PS II.
D. Photolysis of water is essential for it.

Answer

To solve the question, "Which of the following is not related to the non-cyclic process of light reaction?", we will analyze each option provided and determine its relevance to the non-cyclic light reaction process.

### Step-by-Step Solution:

1. **Understanding Non-Cyclic Light Reaction**:
- The non-cyclic light reaction occurs in the thylakoid membranes of chloroplasts, where light energy is captured and used to split water molecules (photolysis) to release oxygen, protons, and electrons.
- Electrons are then transferred through two photosystems (Photosystem II and Photosystem I) and ultimately lead to the production of ATP and NADPH.

2. **Analyzing the Options**:
- **Option 1**: "The process involves both the photosystems which are interconnected by the electron transport system."
- This statement is true. The non-cyclic process indeed involves both Photosystem II and Photosystem I, connected by the electron transport chain.

- **Option 2**: "It results only in the synthesis of ATP but not of NADPH plus hydrogen ion."
- This statement is false. The non-cyclic light reaction produces both ATP and NADPH, so this option is not related to the non-cyclic process.

- **Option 3**: "The membranes of the stromal amylae lack photosystem II."
- This statement is misleading. The stromal amylae (starch granules) do not contain photosystems; however, this statement does not pertain directly to the non-cyclic light reaction itself.

- **Option 4**: "Photolysis of water is essential for it."
- This statement is true. Photolysis of water is a critical step in the non-cyclic light reaction, providing the electrons needed for the process.

3. **Conclusion**:
- After analyzing all the options, we find that **Option 2** is the one that is not related to the non-cyclic process of the light reaction, as it incorrectly states that only ATP is synthesized without NADPH.

### Final Answer:
- **Option 2**: "It results only in the synthesis of ATP but not of NADPH plus hydrogen ion."