The Dark is Rising Sequence is a five-book fantasy fiction series depicting the battle of good and evil between forces known as The Light and The Dark. The stories take place in Britain and have an origin in the mythology of King Arthur, but also incorporates elements of English, Welsh and Cornish mythology.
Plasma carries oxygen to and from cells. Plasma is 90% water. Oxygen and carbon dioxide attaches to the hemoglobin in red blood cells. Plasma carries oxygen to and from cells. Plasma is 90% water. Oxygen and carbon dioxide attaches to the hemoglobin in red blood cells.
Oxygen is carried within red blood cells by a compound called hemoglobin, which is able to bind up to four oxygen molecules and form oxyhemoglobin. Each red blood cell contains large quantities of this molecule, allowing them to carry around far more oxygen than needed to ensure that supply always meets demand.