One of the following gesture of electron is useful to green plants in production of assimilatory power during photochemical reactions

Options

A. Fluorescence
B. Phosphorescence
C. Energy transfer
D. All the above

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about the role of electrons in the production of assimilatory power during photochemical reactions, which refers to the light-dependent reactions of photosynthesis.

2. **Identifying Photochemical Reactions**: Photochemical reactions occur during the light phase of photosynthesis, where light energy is converted into chemical energy. This process primarily involves the absorption of light by chlorophyll.

3. **Production of Assimilatory Power**: Assimilatory power refers to the energy-rich molecules produced during the light reactions of photosynthesis. The two main forms of assimilatory power are ATP (adenosine triphosphate) and NADPH (nicotinamide adenine dinucleotide phosphate).

4. **Role of Electrons**: During the light reactions, electrons are excited by light energy and transferred through a series of proteins in the thylakoid membrane (known as the electron transport chain). This transfer of electrons is crucial for the synthesis of ATP and NADPH.

5. **Conclusion**: The gesture of electrons that is useful for green plants in the production of assimilatory power during photochemical reactions is primarily related to "energy transfer," which is essential for the formation of ATP.

6. **Final Answer**: Therefore, the correct option is C: energy transfer.

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