MyCompetitiveExams Dynamic 180-question full-length simulator mixed dynamically from all 6 years for 2027 & 2026 aspirants.
Which of the following algae produce Carrageen?
Marine algae produce commercially vital hydrocolloids (water-holding substances): Algin is produced by Brown algae, while Carrageen is produced by Red algae (Rhodophyceae)! Agar is also obtained from red algae (Gelidium and Gracilaria). Match Option (3)!
Certain marine brown and red algae produce large amounts of hydrocolloids (water-holding phycocolloids) in their cell walls:
Carrageen (derived notably from the red seaweed *Chondrus crispus* or Irish moss) is a sulfated galactan polysaccharide widely utilized as a thickening, stabilizing, and gelling agent in food products and pharmaceutical formulations.
Diagnose every choice: Know exactly why the right option works and why distractors fail.
Green algae (Chlorophyceae) have cellulosic walls without commercially harvestable phycocolloids like carrageen.
Brown algae (Phaeophyceae) produce algin (alginic acid), not carrageen.
Carrageen is a commercial phycocolloid harvested exclusively from red algae (Rhodophyceae).
Blue-green algae (Cyanobacteria) are prokaryotes that produce gelatinous sheaths, not commercial carrageen.
NTA loves testing the pair: Algin vs Carrageen. Over 35% of candidates mix up which belongs to brown versus red algae.
"Certain marine brown and red algae produce large amounts of hydrocolloids (water holding substances), e.g., algin (brown algae) and carrageen (red algae) which are used commercially."
Test your speed and accuracy in the authentic 200-minute timed NTA simulator.
Spotted a mistake in this solution? Report an error (support@mycompetitiveexams.com)
Cover all 1,140 official NEET questions in 285 days at your own pace. Progress is saved on your device. No login needed.