Multiple choice general knowledge

Meaning of "Cruorin"?

  1. Bile

  2. Lypase

  3. Spinal Fluid

  4. Haemoglobin

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D Correct answer
Explanation

Cruorin is an outdated term for haemoglobin, the red pigment in blood responsible for oxygen transport. The name derives from Latin 'cruor' meaning blood or clotted blood.