PHOTOSYNTHESIS
LIGHT DEPENDENT REACTIONS
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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chlorophyll b and carotenoids.
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chlorophyll a and carotenoids.
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chlorophyll a and chlorophyll b.
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carotenoids and DNA.
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Detailed explanation-1: -Examples of accessory pigments are chlorophyll b and carotenoids. Chlorophyll b absorbs mostly blue and yellow light and reflects yellow-green pigments. Carotenoids absorb light in the blue-green ranges and reflect the yellow, red and orange ranges.
Detailed explanation-2: -Answer: Accessory pigments are pigments that help with photosynthesis by capturing energy from different wavelengths of light. Chlorophyll-b, Xanthophylls, and carotenoids are examples.
Detailed explanation-3: -Chlorophyll A and B are the two major pigments, involved in photosynthesis. Chlorophyll A is the primary pigment of photosynthesis, trapping the light energy and emitting highenergy electrons into the two photosystems P680 and P700. Chlorophyll B is the accessory pigment, passing the trapped energy into chlorophyll A.
Detailed explanation-4: -Besides containing chlorophylls, photosynthetic organisms contain accessory pigments that extend the range of absorbed wavelengths. Carotenoids are the main accessory pigment found in cyanobacteria, algae, and higher plants.
Detailed explanation-5: -Chlorophylls and carotenoids are plant pigments which absorb light energy for use in photosynthesis. There are two main chlorophyll (Chl) pigments in higher plants (Chl a and Chl b) and several hundred different carotenoids (Car). However, only six carotenoids are ubiquitous among higher plants (Esteban et al., 2015).