HORTICULTURE SCIENCE
CROP PHYSIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which of the following is a chlorophyll molecule lacking central Mg2+ ion?
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Chl a
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Bacteriochlorophyll
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Chl c
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Pheophytin
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Explanation:
Detailed explanation-1: -In biochemical terms, pheophytin is a chlorophyll molecule lacking a central Mg2+ ion.
Detailed explanation-2: -Pheophytin, a natural degradation product of chlorophyll, has an absorption peak in the same spectral region as chlorophyll a.
Detailed explanation-3: -Chlorophyll c lacks phytol tail while all other types present this long chain hydrocarbon. Note:Reason behind the green colour of leaves lies within the chlorophyll. Chlorophyll molecules absorb only red, blue and violet lights in the visible spectrum and it reflects green.
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