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Which of the following is water soluble?
Option: 1
Lutein
Option: 2
Phycocyanin
Option: 3
Beta-carotene
Option: 4
Bacterioviridin
Answers (1)
Phycobilins:
- These are water-soluble pigments.
- They contain 4 pyrrole rings but lack magnesium ions and phytol tail.
- These occur in blue-green algae and red algae.
- There are two main types of phycobilins - phycocyanin (blue) and phycoerythrin (red)
Phycobilins are water-soluble. Phycocyanin is a type of phycobilin. Hence, the correct answer is option b.
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