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  • Can someone explain Which one of the following statements is wrong?

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)

best_answer

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

Posted by

prateek

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