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Q. No.Identify the incorrect statement regarding photosynthesis in higher plants:
| 1. | Chlorophyll a is the chief pigment associated with photosynthesis. |
| 2. | Splitting of water is associated with PS II |
| 3. | Cyclic flow of electrons results only in the synthesis of NADH |
| 4. | Biosynthetic phase is dependent on the products of the light reaction |
Subtopic: Â Photosynthetic Pigments |
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Though chlorophyll a is the major pigment responsible for trapping light, other thylakoid pigments called accessory pigments are also involved. The accessory pigments:
I. Include xanthophylls and carotenoids but not chlorophyll b
II. Absorb light and transfer electrons to chlorophyll a
III. Enable a wider range of wavelength of incoming light to be reflected by green leaves
IV. Make Chlorophyll a more prone to photo-oxidation
The incorrect statements include:
| 1. | Only I and II | 2. | Only III and IV |
| 3. | Only I, III and IV | 4. | I, II, III and IV |
Subtopic: Â Photosynthetic Pigments |
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Identify the incorrect statement regarding photosynthetic pigments in higher plants:
| 1. | Chlorophyll a is the chief pigment associated with photosynthesis. |
| 2. | In the chromatogram, carotenoids appear yellow to yellow-orange. |
| 3. | Accessory pigments protect chlorophyll a from photo-oxidation. |
| 4. | The maximum absorption of chlorophyll a is in blue and green wavelength region of light. |
Subtopic: Â Photosynthetic Pigments |
 70%
From NCERT
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Q. No.
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