Select the incorrect statement.

Options

A. Pigments other than chlorophyll are also involved in the process of photosynthesis
B. Chlorophyll b absorbs light of same wavelength as that of chlorophyll a.
C. Action spectra of chlorophylls was described by Engelman
D. all are correct

Answer

To solve the question of selecting the incorrect statement regarding photosynthesis, we will analyze each option provided:

1. **Statement 1**: "Pigments other than chlorophyll are involved in the process of photosynthesis."
- **Analysis**: This statement is correct. In addition to chlorophyll A, chlorophyll B, and other pigments like beta carotene and carotenoids are indeed involved in photosynthesis by capturing light energy.

2. **Statement 2**: "Chlorophyll B absorbs light of the same wavelength as that of chlorophyll A."
- **Analysis**: This statement is also correct. Both chlorophyll A and chlorophyll B absorb light in the range of approximately 400 to 700 nanometers, although they have different absorption peaks.

3. **Statement 3**: "Action spectra of chlorophylls was described by Engelman."
- **Analysis**: This statement is incorrect. The action spectra of chlorophyll were not described by Engelman; it was actually described by another scientist named Von Luckeren Champagne.

Based on the analysis, the incorrect statement is:

**Conclusion**: The incorrect statement is: "Action spectra of chlorophylls was described by Engelman."

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