What are amino acids?

Amino acids are indeed the basic building blocks of proteins. Each protein is made up of long chains of amino acids linked together by peptide bonds, and there are 20 different amino acids that can combine in various sequences to form a vast array of proteins, each with its own unique structure and function.

The significance of amino acids extends beyond their role in protein synthesis; they also play critical roles in various metabolic processes. Some amino acids can serve as precursors for neurotransmitters and hormones, contributing to numerous physiological functions in the body. The specific sequence and combinations of amino acids determine the characteristics and actions of each protein, which are essential for cell structure, function, and regulation.

While other options mention substances important to the body, such as natural substances regulating metabolic processes or minerals supporting bone health, these descriptions do not accurately define what amino acids are. Amino acids are distinctly characterized by their role in forming proteins, which serves as the basis for many biological processes.