Question

Protein is a polymer of:
A. Glucose
B. Terephthalic acid
C. Amino acid
D. Glycol

Answer 1

Proteins contain carbon, nitrogen, oxygen, hydrogen and a small amount of sulfur. It acts as catalysts or enzymes which speed up the rate of reaction. They are linked with peptide bonds. They are linear polymers. They are the basis for the major structural components of animal and human tissue.

Complete step by step answer:
The molecules which yield amino acids upon hydrolysis are called proteins. They are natural polymers of amino acids. They participate in different cell reactions, act as molecules of immunity and also provide fuel.
Proteins are classified as simple, conjugated and derived proteins. Simple proteins are the proteins which give one amino acid on hydrolysis. E.g. Albumin
Conjugated proteins are the proteins which give an amino acid and a non-protein group on hydrolysis. E.g. Nucleoproteins.
Derived proteins are the proteins which are derived from simple and conjugated proteins. E.g. Proteans.
Depending upon the spatial arrangement of polypeptide chains, proteins have four structures-primary, secondary, tertiary and quaternary.
Starch is a polymer of glucose. Glycol and terephthalic acid is polymerized with other compounds to form their corresponding polymers.
Hence, the correct option is C.

Additional information:
Proteins are found in all living organisms. It is involved in processes such as digestion of food, cell structure, catalysis, movement, energy manipulation etc.

Note:
Proteins are complex molecules. Amino acids are linked with one another through peptide bonds. Long chains of amino acids are called polypeptides. Proteins act as a carrier of heredity materials from one generation to the next. Some proteins act as an oxygen carrier. Proteins obtained from soya beans are used for the production of plastics.