Q. Consider the following statements about brown algae I. The largest kelps are $Nereocystis$ and $Macrocystis$ II. Brown algae have gelatinous coating outside the, cellulosic cell wall called algin III. Food obtained from $Laminaria\ saccharina$ is known as ‘Kombu’ Which of the statements given above are correct?
A) I and II
B) I and III
C) II and III
D) I, II and III
Explanation
The gaint brown algae are called kelps. The largest kelps are Nereocystis (20-30 m) and Macrocystis (40-50 m). Brown algae have gelatinous coating outside the, cellulosic cell wall called algin. Alginic acid is extracted commercially from gaint brown algae or kelps. Many brown algae are used as food in some countries. Food obtained from Laminaria saccharina is known as ‘kombu’. It is rich in carbohydrates
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.