Which of the following algae contains mannitol as reserve food material ?

1. Ectocarpus

2. Gracilaria

3. Volvox

4. Ulothrix

Doubtly Asked 30 Oct 2026 NEET UG 2021 Practice test neet Save WhatsApp Report

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Answer: 1. Ectocarpus

Ectocarpus is a brown alga. Brown algae store food as laminarin and mannitol.

Gracilaria is red (floridean starch), while Volvox and Ulothrix are green algae (starch).

Doubtly AI · 30 Oct 2026 AI-generated · not yet verified Report

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