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Plant Kingdom

Question
CBSEENBI11002106

Which one of the following statements is wrong?

  • Algin and carrageenian are products of algae.

  • Agar-agar is obtained from Gelidium and Gracilaria

  • Chlorella and Spirulina are used as space food

  • Mannitol is stored food in Rhodophyceae

Solution

D.

Mannitol is stored food in Rhodophyceae

Mannitol is stored food in Phaeophyceae. Red algae are the oldest groups of eukaryotic algae which includes marine algae especially seaweeds. The floridean starch is storage carbohydrate of red algae as grains outside the chloroplast.