Hemoglobin by molecules such as carbon monoxide (for example, from tobacco smoking, exhaust gas, and incomplete combustion in furnaces). CO competes with oxygen at the heme binding site. Hemoglobin's binding affinity for CO is 250 times greater than its affinity for oxygen, meaning that small amounts of CO dramatically reduce hemoglobin's ability to transport oxygen. Since carbon monoxide is a colorless, odorless and tasteless gas, and poses a potentially fatal threat, carbon monoxide detectors have become commercially available to warn of dangerous levels in residences. When hemoglobin combines with CO, it forms a very bright red compound called carboxyhemoglobin, which may
Blood Car Blood Car Blood Car is a 2007 black comedy film set in the not-too-distant future where gasoline prices have become exorbitant ($30+ US/gallon). Things take a turn for the worse when a kindergarten teacher (Mike Brune) invents a car that runs on a different fuel source: blood. Archie Andrews is a vegan kindergarten teacher who buys products from Lorraine's vegetarian road side stand. He is developing an engine that runs on wheatgrass with no results until he accidentally cuts his finger and the blood falls in the wheatgrass, which filters to the engine and then causes it to run. Andrews