Haemoglobin

Haemoglobin is the proteinProteins are large molecules consisting of chains of amino acids. Proteins are essential nutrients for the human body – they are a building block of... that is found in red blood cells. It contains ironWhat it does: As a component of red blood cells, iron transports oxygen and carbon dioxide to and from cells. Also vital for energy production.... and is responsible for carrying oxygen from the lungs to the tissues of the body.