Answer:
Proteins play several critical roles in the body, but the primary function of proteins is to serve as building blocks for tissues and to perform a variety of biological functions.
Some of the key functions of proteins in the body include:
Structural support: Proteins form the structure of many tissues in the body, such as skin, hair, and nails.
Enzymes: Proteins act as enzymes and catalyze chemical reactions in the body, facilitating metabolic processes.
Hormones: Proteins play a crucial role as hormones, regulating growth and metabolism, and transmitting signals between cells and tissues.
Transport: Proteins are involved in the transport of molecules and ions within the body.
Immune system: Proteins serve as antibodies and help to protect the body from harmful pathogens.
Overall, proteins play a vital role in many functions of the body and are essential for maintaining health and well-being.