Question

Cellulose is the major component of the cell walls of
1. saccharomyces
2. pythium
3. xanthomonas
4. pseudomonas

Answer 1

Cellulose is the major component of the cell walls of pythium.
Pythium belongs to class oomycetes of mycota(fungi). They are an exception to fungi as their cell wall is made of cellulose instead of chitin, which is a characteristic of fungi.