Purple blood cells consist of haemoglobin, and 1 molecule of haemoglobin can have as much as four molecules of oxygen. The majority of the haemoglobin in blood combines with oxygen mainly because it passes in the lungs.I like you extremely much ? ???? ???????? ???? ??????? ? Moc se mi líbíš ? Jeg kan rigtig godt lide dig ? Ich mag Sie sehr gerne