Which one of the following statements is wrong ?
Chlorella and Spirulina are used as space food
Mannitol is stored food in Rhodophyceae
Algin and carrager are products of algae
Agar-agar is obtained from Gelidium and Gracilaria
Food is stored in the form of laminarin and mannitol in brown algae and food is stored in red algae in form of complex carbohydrates(floridean starch). Hence the correct option is (2).