Question

why polysaccharides are tasteless?​

Answer 1

Answer:

Explanation:

The sweet taste receptor is a heterodimer of two G protein coupled receptors, T1R2 and T1R3. A molecule like sucrose or aspartame can fit easily because it is small, but polysaccharides can be massive chains that simply don't fit in the binding site of the receptor protein. Hence the lack of sweet taste.

Answer 2

Polysaccharides are relatively more complex carbohydrates. They are polymers made up of many monosaccharides. They are very large, often branched, molecules. They tend to be amorphous, insoluble in water, and have no taste.