Question 11

Amino acids are linked together to form proteins.

Proteins are composed of long chains of amino acids that are connected through peptide bonds. This fundamental relationship highlights the crucial role of amino acids in the structure and function of proteins.

A) Vitamins

Vitamins are organic compounds that are essential for various bodily functions but do not serve as building blocks for proteins. They play supportive roles in metabolic processes but are not linked together to form proteins.

B) Amino acids

Amino acids are the correct answer as they are the basic building blocks of proteins. They are linked together in specific sequences to create polypeptide chains, which then fold into functional proteins.

C) Fats

Fats, or lipids, are macromolecules that serve primarily as energy storage and structural components of cell membranes. They do not link together to form proteins, hence they are not relevant to the question.

D) Monosaccharides

Monosaccharides are the simplest form of carbohydrates and serve as energy sources. They are not involved in the formation of proteins, as they do not link together to create polypeptide chains.

Conclusion

Amino acids are unequivocally the building blocks of proteins, making option B the only correct choice. All other options—vitamins, fats, and monosaccharides—serve different biological functions and do not contribute to protein synthesis, thereby confirming the exclusivity of amino acids in this context.