13. Which of the following statements is true about photosynthetic pigments?
A Chlorophyll and carotenoids are the two major classes of photosynthetic pigments in plants and algae
B Chlorophyll an and chlorophyll b can be found on higher plants chloroplasts.
C. Many photosynthetic organisms have a mixture of pigments.
D. All of the above
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Answer:
A Chlorophyll and carotenoids are the two major classes of photosynthetic pigments in plants and algae
Explanation:
Chlorophylls and carotenoids are the two major classes of photosynthetic pigments found in plants and algae; each class has multiple types of pigment molecules. Chlorophyll a absorbs light in the blue-violet region, while chlorophyll b absorbs red-blue light.