HUMAN NUTRITION

Detailed explanation-1: -Celery, in particular, is very high in cellulose. If you have ever gotten stringy pieces from celery stuck between your teeth, then you have felt cellulose in action ( 4 ). Cellulose is also a common food additive.

Detailed explanation-2: -(b) The cellulose of celery stalks and lettuce leaves is fiber.: This is true, with cellulose being one of the most prevalent forms of insoluble fiber found in plants.

Detailed explanation-3: -Cellulose is a substance found in the cell walls of plants. Although cellulose is not a component of the human body, it is nevertheless the most abundant organic macromolecule on Earth . The chemical structure of cellulose resembles that of starch, but unlike starch, cellulose is extremely rigid (Figure 1).