EVERYDAY SCIENCE

SCIENCE

PLANT KINGDOM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which statement about Brown algae is correct?
A
Reserve food is Floridean starch
B
Two Equal apical flagella present
C
Cell wall made of cellulose and algin
D
Chlorophyll a and d present
Explanation: 

Detailed explanation-1: -The cell wall of green algae (Chlorophyceae) is made up of cellulose. And the cell wall of brown algae (Phaeophyceae) is composed of Cellulose and algin. Now at last, the cell wall of red algae (Rhodophyceae) is composed of cellulose, pectin and polysulphate esters.

Detailed explanation-2: -Brown algal cell walls are composed predominantly of the polyanionic polysaccharides alginates and fucose-containing sulfated polysaccharides. These polymers are prevalent over neutral and crystalline components, which are believed to be mostly, if not exclusively, cellulose.

Detailed explanation-3: -Brown algae have a unique cell wall consisting of alginate, cellulose, and sulfated polysaccharides.

Detailed explanation-4: -Introduction. Algin is a natural polysaccharide, a common constituent of cell wall in all species of the brown seaweeds (Phaeophyceae).

Detailed explanation-5: -Chlorophycean green algae produce a wide array of walls ranging from cellulose–pectin complexes to ones made of hydroxyproline-rich glycoproteins.

There is 1 question to complete.