Which of the following is incorrectly matched?
- Ectocarpus - Fucoxanthin
- Ulothrix - Mannitol
- Porphyra - Floridian Starch
- Volvox - Starch
Answer
(2) Ulothrix - Mannitol
Solution
Ectocarpus is a brown alga (Phaeophyceae) – pigment fucoxanthin: correct.
Ulothrix is a green alga (Chlorophyceae) – stored food is starch, not mannitol: incorrect.
As per NCERT, mannitol (with laminarin) is the stored food of brown algae.
Porphyra is a red alga (Rhodophyceae) – stored food floridean starch: correct.
Volvox is a green alga – stored food starch: correct.
Answer: (2)