Which statements about carbohydrates are CORRECT? I. Inulin is a polymer of sucrose. II. Glucose is a respiratory substrate and is also called fruit sugar. III. Starch forms helical secondary structures in which it can hold I 2 molecules. IV. The variant of cellulose in animals is glycogen.

Step-by-step solution

The biomolecules with carbon, oxygen and hydrogen atoms are known as carbohydrates. Depending on the composition, they can either be monosaccharide, disaccharide or polysaccharides. Sucrose is a disaccharide and can be broken down to glucose and fructose. Inuline is a polymer of fructose. Glucose and fructose are monosaccharides, out of which fructose is also known as fruit sugar. Starch forms helical secondary structures in which it can hold I 2 molecules. The starch-I 2 is blue in colour. Cellulose is a homopolym