Question

What happens to the food and air molecules that enter the circulatory system? *

Answer 1

The dissolved food molecules are transferred into the bloodstream at the small intestine by diffusion and other transport processes. Once the dissolved food molecules are in the bloodstream, they can be transported to all the cells in the body.

Answer 2

Delivers oxygen and nutrients to cells and takes away wastes. The heart pumps oxygenated and deoxygenated blood on different sides.