Answer:
Cellulose is not digested by humans since we do not have an enzyme so that this polysaccharide can be digested, like agarose, since the unions of these polysaccharides are complex and different from starch or glycogen, this is how these unions they need enzymes that can catalyze them and humans do not have them.
Step-by-step explanation:
That is why both cellulose and agarose, as they do not have an enzyme that breaks them down, and is not assimilated in the form of monosaccharides, this polysaccharide cannot be digested or metabolized by humans.