Question

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.

Answer 1

D. Proteins only formed from amino acids with the help of peptide bond.

Step-by-step explanation:

Polysaccharide are made up of long chain of monosaccharide (these are known as simple sugar like glucose). Polysaccharide are carbohydrates such as starch, glycogen and cellulose. Polysaccharide consist of oxygen, hydrogen and carbon molecules with the ratio of 1:2:1.

Proteins, there are 20 different types of amino acids are found in protein and playing important fundamental role in to determine the structure and function of the protein. Proteins are major structural element of the cell, they are working as a transporter helping in movement of the molecule inside and outside the cell. Proteins consist molecules of carbon, nitrogen, oxygen and hydrogen and these molecules are not present in a partial ratio.

Answer 2

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