What are Xanthophylls ? from Biology Photosynthesis in Higher P
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    Photosynthesis in Higher Plants

    Multiple Choice QuestionsShort Answer Type

    21. What are thylakoids ?
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    22. What are carotenoids ?
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    23. What is DCMU ?
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    24. What are Xanthophylls ?

    Xanthophylls or carotenols are oxygen derivatives of carotenes with molecular formula C40H56O2 e.g. lutein, zeaxanthin. These are also accesory pigments which absorb light and transfer the energy to chlorophyll.
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    25. Name the minerals required in synthesis of chlorophyll.
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    26. What is photoluminescence ?
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    27. Name fat soluble pigments.
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    28. What are the characteristics of CAM plants ?
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    29. Which protein is abundant in nature ?
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    Multiple Choice QuestionsOne Word Answers

    30. Name one CAM plants.
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