What is the role of zinc in the body?

Zinc plays several vital roles in the body, and its primary functions include supporting immune function and facilitating wound healing. It is an essential trace element that is crucial for the activity of numerous enzymes and proteins involved in the immune system. Zinc helps maintain the integrity of skin and mucosal membranes, which are the body's first line of defense against pathogens. Furthermore, zinc is instrumental in the process of cell division and growth, which is vital for healing wounds. A deficiency in zinc can lead to weakened immune response, making the body more susceptible to infections and prolonging recovery from wounds.

The other options do not accurately represent the primary functions of zinc. While energy provision, cognitive function, and blood pressure regulation are important processes in the body, they are not primarily or directly associated with the role of zinc. Understanding the specific functions of nutrients like zinc can enhance knowledge of nutrition-related health and wellness practices.