Biology 0610 · IGCSE · Excretion in humans

Excretion in humans — practice question

Which row identifies the blood vessel with the highest blood urea concentration and the blood vessel with the lowest blood urea concentration?

  • Ahighest blood urea concentration: hepatic artery; lowest blood urea concentration: hepatic vein
  • Bhighest blood urea concentration: hepatic vein; lowest blood urea concentration: renal vein
  • Chighest blood urea concentration: hepatic portal vein; lowest blood urea concentration: renal artery
  • Dhighest blood urea concentration: renal vein; lowest blood urea concentration: hepatic portal vein

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