0 Question: Why is blood red? Keywords: blood Asked by ohlookaduck to Kat, Andrew, Katie, Sadaf on 21 Jun 2013. This question was also asked by andreea.
Andrew Swale answered on 21 Jun 2013:
This is due to the iron (haemoglobin) present in our blood
This is why in other animals who have haemocyanin instead of haemoglobin have blue blood, due to the copper instead of the iron
anon answered on 26 Jun 2013:
The haem molecule in blood is red and made of iton giving blood its colour
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