What are the main functions of food?
The main functions of food are:
-To provide good health,
-To provide energy,
-To help in organ functioning and cell growth.
The main functions of the circulatory system in the human body are the delivering of food to the cells, delivering of oxygen from the lungs to the rest of the body, the taking of Carbon Dioxide from the cells and taking it to the lungs and the transportation of blood proteins and hormones to the different organs and systems.