Multiple choice

Which of the following algae is used as a main source of agar agar?

  1. Gelidium

  2. Laminaria

  3. Chordrus

  4. Gloeopeltis

  5. Polysiphonia
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A Correct answer
Explanation

Gelidium is one of the main sources of agar agar thalli. It is a mucilage produced by the red algae and stored along with cellulose in cell wall. Agar agar is used as a base for culture media for fungi, bacteria and algae.

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