Plant-Kingdom Question 702

Question: Consider the following statements about brown algae.

(i) Nereocystis and Macrocystis are the largest kelps. (ii) Algin is the gelatinous coating outside the cellulosic cell wall in brown algae. (iii) ‘Kombu’ is the name given to the food obtained from Laminaria saccharina. Which of the statements given above are correct?

Options:

A) (ii) and (iii)

B) (i) and (ii)

C) (i) and (iii)

D) (i), (ii) and (iii)

Show Answer

Answer:

Correct Answer: D

Solution:

[d] Kelps are giant brown algae.

Nereocystis (20-30 m) and Macrocystis (40-50 m) are the largest kelps.

Algin is the gelatinous coating outside the cellulosic cell wall in brown algae.

Alginic acid is extracted commercially from kelps.

Some countries consume certain brown algae as food.

‘Kombu’ is the name given to the food obtained from Laminaria saccharina.

It is rich in carbohydrates.