Question

The cell wall of algae contains :
(a) galactans (b) pectin
(c) chitin (d) muramic acid

Answer 1

Like plants, algae have cell walls. Algal cell walls contain either polysaccharides (such as cellulose (a glucan)) or a variety of glycoproteins (Volvocales) or both. The inclusion of additional polysaccharides in algal cells walls is used as a feature for algal taxonomy.

So the answer is a) galactans