Q. From which of the following algae, agar-agar is commercially extracted? I. $Gracilaria$ II. $Fucus$ III. $Sargassum$ IV. $Gelidium$ V. $Turbinaria$
A) III and V
B) II and III
C) IV and V
D) I and IV
Explanation
Agar-agar is obtained from $Gelidium\ and\ Gracilaria.$ Agar-agar is used in solidifying laboratory culture media and is added as stabiliser or thickener in the preparation of jellies, puddings, creams, cheese, bakery, etc.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.