A) cellulose, galactans and mannans
B) hemicellulose, pectins and proteins
C) pectins, cellulose and proteins
D) cellulose, hemicellulose and pectins
Correct Answer: A
Solution :
Like plants, algae have cell walls contain either polysaccharides such as cellulose (a glucan) or a variety of glycoproteins-or both. The inclusion of additional polysaccharide in algal cell walls is used as a feature for algal taxonomy. Mannas form microfibrils in the cell walls of a number of marine green algae including those from the genera Codium, Acetabularia as well as in the walls of some red algae like Porphyra.
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