carbon dioxide from the air is used to produce glucose and other  compounds.
Blood Filtration in the Kidney. The kidneys filter about one-quarter (750-1000 pints) of the blood that is output by the heart daily. This blood is sent to the body's filter treatment plant, where it is purified by the kidneys and circulated on to the rest of the body. Some of the blood flow becomes fluid waste (1/1000th to 2/1000th) and is sent into the bladder for storage until it can be conveniently expelled. This toxic waste is called urine.
Best Answer: I work in a blood testing lab in England and i must say, thats not a simple question to answer! Red blood cells and most white cells are made in the bone marrow, the femur bone is the main source. Platelets used for clotting are made from broken down parts of red cells and other cells. Most blood is water and that is extracted from the intestine and stomach during digestion. Water you drink can be in your blood within minutes. Ather nutrients are also extracted during digestion.