Proteins and polysaccharides are polymers. These polymers are formed by dehydration synthesis. Which statement correctly identifies a difference in the structure of proteins and polysaccharides?

a) Only polysaccharides can be folded and twisted to very specific shapes.



b) Only polysaccharides are comprised of repeating units of cytosine, adenine, guanine, and thymine.


c) Only proteins can be large molecules with thousands of subunits.

d)Only proteins are formed from amino acids joined by peptide bonds.