What are the prioritized functions of the proteins in the body?

Proteins in the body serve several prioritized functions, including structural support, as seen in collagen and keratin, which provide strength and elasticity to tissues. They also play crucial roles in enzymatic activity, facilitating biochemical reactions essential for metabolism. Additionally, proteins are vital for transporting molecules, such as hemoglobin transporting oxygen in the blood, and for immune responses, where antibodies help defend against pathogens. Overall, proteins are fundamental to maintaining cellular integrity, communication, and homeostasis.