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Consider the following statements about major pigments and stored food in different groups of algae. Choose the correct options:
A) In Chlorophyceae, starch is the stored food material, and the major pigments are chlorophyll a and d.
B) In Phaeophyceae, laminaria serves as the stored food, and the major pigments are chlorophyll a and b.
C) In Rhodophyceae, Floridian starch acts as the stored food, and the major pigments are chlorophyll a, d, and phycoerythrin.
A and B are correct, but C is wrong.
A and C are correct, but B is wrong.
B is correct, but A and C are wrong.
C is correct, but A and B are wrong.
Answers (1)
Green algae possess chlorophylls a and b as their major pigments and store starch as their primary food reserve within their plastids. The coloration of brown algae spans a range from pale beige to yellow-brown to nearly black. They contain pigments such as chlorophyll c and fucoxanthin. Brown algae lack plasmodesmata and do not produce starch. Rhodophytes, or red algae, contain chlorophyll a, but its visibility is masked by phycobilin pigments that are bound to proteins. The chloroplasts in red algae exhibit biochemical and structural similarities to cyanobacteria. Food reserves in red algae are stored outside the chloroplasts as Floridean starch.
Hence, the correct answer is option 4.
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