What are the main differences in composition of blood taken from an artery to blood taken from a vein?

An artery which principally supplies cells metabolism would contain more of the 'fuels' required such as oxygen and glucose. A vein typically carries blood containing the waste products of metabolism and therefore contains more carbon dioxide and lactic acid. An artery may also be richer in digested food materials such as amino acids.

Answered by Tegen W. Biology tutor

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