Question

What colour is blood when hemoglobin is not present?

Answer 1

Hi There

Oxygenated hemoglobin (found in blood from arteries) is bright red, but without oxygen present (as in blood from veins), hemoglobin turns a darker red. Venous blood is often depicted as blue in colour in medical diagrams, and veins sometimes look blue when seen through the skin.


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Answer 2

Blood is colourless, if haemoglobin isn't present in blood, coz most of the colour of blood is from haemoglobin. Nearly the blood is 96% reddish & 6% colourless because of the presence of haemoglobin.
So there will no colour, if haemoglobin isn't present in the blood.

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