Plant Kingdom Question 491
Question: A gelatinous coating outside the cellulosic cell wall is observed in the members belonging to brown algae. This gelatinous coating is called-
Options:
A) Algin
B) Polyalginate
C) Glycoalgin
D) Mannitol
Show Answer
Answer:
Correct Answer: A
Solution:
[a] Alginic acid is a phycocolloid, extracted commercially from giant brown algae or kelp.
Alginic acid is copolymer of $ \alpha -1, $ 4 D-mannuronic acid and $ \alpha -1, $ 4 L-glucuronic acid.