First slide

Algae

Question

Which one is wrongly matched?

Easy

A

Uniflagellate gametes - Polysiphonia
B

Biflagellate zoospores - Brown algae
C

Gemma cups - Marchantia
D

Unicellular organism - Chlorella

Solution

Polysiphonia is a member Rhodophyceae (red alage). They reproduce sexually by non-motile gametes.
Asexual reproduction in most brown algae is by biflagellate zoospores that are pear-shaped and have two unequal laterally attached flagella.
Asexual reproduction in liverworts (e.g., Marchantia) takes place by fragmentation of thalli, or by the formation of specialised structures called gemmae (sing. gemma).
Chlorella is a unicellular alga rich in proteins and used as food supplement even by space travellers.

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