OBJECTIVE LIFE SCIENCE
PLANT PHYSIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Chl a
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Chl b
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Carotenoids
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Phycobilins
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Detailed explanation-1: -Phycobilins: Red algae and blue-green algae contain phycobilins, which are water-soluble pigments (cyanobacteria).
Detailed explanation-2: -Chlorophyll a and chlorophyll b have hydrophilic component that makes them water-soluble.
Detailed explanation-3: -The phycobilins are of two types called phycocyanin and phycoerythrin. The red pigment is phycoerythrin and the blue pigment is phycocyanin. Both are water soluble pigments.
Detailed explanation-4: -Chlorophyll: The green pigments of leaves and stem are usually held close to the cell wall in small bodies called chloroplasts along with some carotenes and xanthophylls. Chlorophyll-a is intense blue green in colour and chlorophyll-b is dull yellow green in colour.