Laminarin and mannitol, the reserve food of brown algae, are
A
lipids
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B
complex carbohydrates
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C
proteins
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D
lipoproteins
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Solution
The correct option is B complex carbohydrates Mannitol and laminarin are considered as reserve food material in many brown algae species. These are complex carbohydrates. Mannitol is a sugar alcohol form of mannose, while laminarin is a linear polysaccharide of mannitol-containing β-1,3-linked glucose.