Mannitol is a food stored in Fucus. Fucus is a genus of brown alga in the class Phaeophyceae to be found in the intertidal zones of rocky seashores almost everywhere in the world. Primary chemical constituents of this plant include mucilage, algin, mannitol, beta-carotene, zeaxanthin, iodine, bromine, potassium, volatile oils, and many other minerals.

Correct Option: B

Mannitol is a food stored in Fucus. Fucus is a genus of brown alga in the class Phaeophyceae to be found in the intertidal zones of rocky seashores almost everywhere in the world. Primary chemical constituents of this plant include mucilage, algin, mannitol, beta-carotene, zeaxanthin, iodine, bromine, potassium, volatile oils, and many other minerals.

In green algae, the photosynthetic pigments are chlorophyll a & b, carotenes and xanthophylls. In phaeophyceae, the pigments are chlorophyll a, chlorophyll c and carotenes and xanthophylls. Phycoerythrin gives red colour to Rhodophyceae.

Correct Option: A

In green algae, the photosynthetic pigments are chlorophyll a & b, carotenes and xanthophylls. In phaeophyceae, the pigments are chlorophyll a, chlorophyll c and carotenes and xanthophylls. Phycoerythrin gives red colour to Rhodophyceae.

Ulothrix is a green alga. Spirogyra is a filamentous green alga. In Rhizopus the columella bears the spores for asexual reproduction.

Correct Option: B

Ulothrix is a green alga. Spirogyra is a filamentous green alga. In Rhizopus the columella bears the spores for asexual reproduction.

Algae is a plant and so its cell wall is made up of cellulose. Cellulase enzyme is needed for degradation of its cell wall.

Correct Option: B

Algae is a plant and so its cell wall is made up of cellulose. Cellulase enzyme is needed for degradation of its cell wall.

Reserve food in red algae (Rhodophyceae) is Floridean starch. In green algae, (Chlorophyceae), reserve food is starch. In brown algae, reserve food is laminarin and manitol. In cyanophyceae reserve food is cyanophycean starch.

Correct Option: B

Reserve food in red algae (Rhodophyceae) is Floridean starch. In green algae, (Chlorophyceae), reserve food is starch. In brown algae, reserve food is laminarin and manitol. In cyanophyceae reserve food is cyanophycean starch.