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Get Answers to all your Questions
Which one of the following statements is wrong?
- Option 1)
Algae increase the level of dissolved oxygen in the immediate environment.
- Option 2)
Algin is obtained from red algae, and carrageenan from brown algae.
- Option 3)
Agar-agar is obtained from Gelidium and Gracilaria.
- Option 4)
Laminaria and Sargassum are used as food.
Answers (1)
As learnt
Cell wall composition of Phaeophyceae -
Cellulosic wall, covered by gelatinous coating of algin.
- wherein
Algins are component of phycocolloids.
Algin is obtained from Laminaria & Fucus-Brown algae while Carrageenan from chondrus crispes - Red algae.
Option 1)
Algae increase the level of dissolved oxygen in the immediate environment.
This option is incorrect
Option 2)
Algin is obtained from red algae, and carrageenan from brown algae.
This option is correct
Option 3)
Agar-agar is obtained from Gelidium and Gracilaria.
This option is incorrect
Option 4)
Laminaria and Sargassum are used as food.
This option is incorrect
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