The component of blood that transports carbon dioxide and urea in the body is the plasma.

Quick Scoop

  • Carbon dioxide from body cells is mostly carried in the blood as bicarbonate dissolved in the plasma.
  • Urea, a waste product made in the liver, is also dissolved and transported in the plasma to the kidneys for excretion.
  • Red blood cells help carry some carbon dioxide, but exam-style questions at school level expect “plasma” as the answer to which component transports carbon dioxide and urea.

So, if you are filling in a one-word answer: Plasma.

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Find out which component of the blood transports carbon dioxide and urea in the body, with a clear, exam-focused explanation and quick facts for students.