Multiple choice

Which one of the following algae is an important source of mannitol?

  1. Chlorella

  2. Gelidium

  3. Laminaria

  4. Sargassum

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Laminaria (brown algae) is commercially important as a source of mannitol, a sugar alcohol used as a sweetener and in medicine. Chlorella is used for protein/supplements, Gelidium for agar, and Sargassum for alginate - not primarily for mannitol.