Aggregates of atoms or molecules in a finely divided state dispersed in a gaseous, liquid, or solid medium and resisting sedimentation, diffusion, and filtration, thus differing from precipitates
Iron
The importance of iron in human metabolism
Iron is important for human life. It is found in every cell of the human body. Iron is essential to manufacture hemoglobin found in the red blood cells and myoglobin found in muscles. These two are oxygen-carrying proteins. Hemoglobin carries oxygen from the lungs to different parts of the body.
