Question

Select the incorrect statement w.r.t. algae. (1) Asexual reproduction in most brown algae is by pyriform biflagellate zoospores. (2) The commercial source of carrageen is Brown algae (3) Most of the members of chlorophyceae have one or more storage bodies called pyrenoids located in the chloroplast (4) Red alga reproduce asexually by non-motile spores and sexually by non-motile gametes.​

Answer 1

Answer:

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Explanation:

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Answer 2

Statement 2 is incorrect

Explanation:

• The commercial source of carrageen is not Brown algae but Red algae. Therefore statement 2 is incorrect.
• Carrageenan is derived from different parts of red algae or seaweeds. It is mostly used to thicken foods and sometimes as medicine.
• Asexual reproduction in brown algae occurs by biflagellate zoospores. So this statement is also correct.
• The members of Chlorophyceae also called green algae have storage bodies called pyrenoids which store protein and starch. Therefore statement 3 is also correct.
• Red algae use spores to reproduce asexually and gametes to reproduce sexually , both of which are non-motile.