Which of the following is the chief pigment associated with photosynthesis?
1. chl-a
2. chl-b
3. chl- a and xanthophylls
4. chl-a and carotenoids

Subtopic:  Pigments |
 93%
Level 1: 80%+
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How many pigments are responsible for the color of a plant leaf?

1. 1 2. 2
3. 3 4. 4
Subtopic:  Pigments |
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Level 2: 60%+
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Range of wavelength at which chlorophyll-a shows the maximum absorption in blue region:

1. 400-450 nm 2. 450-500 nm
3. 650-700 nm 4. 500-600 nm.
Subtopic:  Pigments |
Level 3: 35%-60%
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