Collagen is the most abundant protein in the human body and its main role is
Correct answer: B. providing tensile strength in skin, tendon and bone
- A. catalysing reactions
- B. providing tensile strength in skin, tendon and bone
- C. transporting oxygen
- D. storing genetic information
Explanation
Its triple helix of three chains wound together gives collagen enormous tensile strength, which is why tendons and ligaments resist stretching. Vitamin C is needed for its synthesis, and a deficiency produces the weakened connective tissue of scurvy. Genetic information is stored by nucleic acids rather than proteins.
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About Importance of Proteins
Proteins are polymers of amino acids joined by peptide bonds, and their biological roles depend on primary, secondary, tertiary and quaternary structure. Coverage includes enzymes, hormones, antibodies, transport proteins, muscle fibres and structural tissues, together with denaturation and the effects of heat, pH and chemicals.
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