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===Meaning===
'''Deoxygenated blood''' is [[blood]] which contains a low [[concentration]] of [[oxygen]] in the [[haemoglobin]] of the [[Red Blood Cell|red blood cells]].
===References===
====Edexcel====
:[https://www.amazon.co.uk/gp/product/1292120193/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1292120193&linkCode=as2&tag=nrjc-21&linkId=572df39392fb4200db8391d98ae6314e ''Blood; deoxygenated, page 116, GCSE Combined Science, Pearson Edexcel '']
:[https://www.amazon.co.uk/gp/product/1292120207/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1292120207&linkCode=as2&tag=nrjc-21&linkId=22455ff53961978667722edaa64c0be5 ''Blood; deoxygenated, page 168, GCSE Biology, Pearson, Edexcel '']